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[764] fix/Link to prod should not contain http://www. - #218

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[764] fix/Link to prod should not contain http://www.#218
vasilyyaremchuk merged 2 commits into
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764-fix/link-to-prod-should-not-contain-http-and-www

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@VitalyyP VitalyyP self-assigned this Aug 15, 2025
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🔍 Vulnerabilities of apostrophe-cms:test

📦 Image Reference apostrophe-cms:test
digestsha256:f5b066d95c722aee13974bba0d66e078d3876d1152f240e34bdeb8628acdeec1
vulnerabilitiescritical: 1 high: 4 medium: 0 low: 0
platformlinux/amd64
size291 MB
packages984
📦 Base Image node:23-alpine
also known as
  • 23-alpine3.22
  • 23.11-alpine
  • 23.11-alpine3.22
  • 23.11.1-alpine
  • 23.11.1-alpine3.22
digestsha256:b9d38d589853406ff0d4364f21969840c3e0397087643aef8eede40edbb6c7cd
vulnerabilitiescritical: 0 high: 0 medium: 1 low: 1
critical: 1 high: 0 medium: 0 low: 0 form-data 4.0.2 (npm)

pkg:npm/form-data@4.0.2

critical 9.4: CVE--2025--7783 Use of Insufficiently Random Values

Affected range>=4.0.0
<4.0.4
Fixed version4.0.4
CVSS Score9.4
CVSS VectorCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
EPSS Score0.076%
EPSS Percentile23rd percentile
Description

Summary

form-data uses Math.random() to select a boundary value for multipart form-encoded data. This can lead to a security issue if an attacker:

  1. can observe other values produced by Math.random in the target application, and
  2. can control one field of a request made using form-data

Because the values of Math.random() are pseudo-random and predictable (see: https://blog.securityevaluators.com/hacking-the-javascript-lottery-80cc437e3b7f), an attacker who can observe a few sequential values can determine the state of the PRNG and predict future values, includes those used to generate form-data's boundary value. The allows the attacker to craft a value that contains a boundary value, allowing them to inject additional parameters into the request.

This is largely the same vulnerability as was recently found in undici by parrot409 -- I'm not affiliated with that researcher but want to give credit where credit is due! My PoC is largely based on their work.

Details

The culprit is this line here: https://github.com/form-data/form-data/blob/426ba9ac440f95d1998dac9a5cd8d738043b048f/lib/form_data.js#L347

An attacker who is able to predict the output of Math.random() can predict this boundary value, and craft a payload that contains the boundary value, followed by another, fully attacker-controlled field. This is roughly equivalent to any sort of improper escaping vulnerability, with the caveat that the attacker must find a way to observe other Math.random() values generated by the application to solve for the state of the PRNG. However, Math.random() is used in all sorts of places that might be visible to an attacker (including by form-data itself, if the attacker can arrange for the vulnerable application to make a request to an attacker-controlled server using form-data, such as a user-controlled webhook -- the attacker could observe the boundary values from those requests to observe the Math.random() outputs). A common example would be a x-request-id header added by the server. These sorts of headers are often used for distributed tracing, to correlate errors across the frontend and backend. Math.random() is a fine place to get these sorts of IDs (in fact, opentelemetry uses Math.random for this purpose)

PoC

PoC here: https://github.com/benweissmann/CVE-2025-7783-poc

Instructions are in that repo. It's based on the PoC from https://hackerone.com/reports/2913312 but simplified somewhat; the vulnerable application has a more direct side-channel from which to observe Math.random() values (a separate endpoint that happens to include a randomly-generated request ID).

Impact

For an application to be vulnerable, it must:

  • Use form-data to send data including user-controlled data to some other system. The attacker must be able to do something malicious by adding extra parameters (that were not intended to be user-controlled) to this request. Depending on the target system's handling of repeated parameters, the attacker might be able to overwrite values in addition to appending values (some multipart form handlers deal with repeats by overwriting values instead of representing them as an array)
  • Reveal values of Math.random(). It's easiest if the attacker can observe multiple sequential values, but more complex math could recover the PRNG state to some degree of confidence with non-sequential values.

If an application is vulnerable, this allows an attacker to make arbitrary requests to internal systems.

critical: 0 high: 1 medium: 0 low: 0 linkifyjs 4.2.0 (npm)

pkg:npm/linkifyjs@4.2.0

high 8.8: CVE--2025--8101 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Affected range<4.3.2
Fixed version4.3.2
CVSS Score8.8
CVSS VectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
EPSS Score0.060%
EPSS Percentile19th percentile
Description

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability in Linkify (linkifyjs) allows XSS Targeting HTML Attributes and Manipulating User-Controlled Variables.This issue affects Linkify: from 4.3.1 before 4.3.2.

critical: 0 high: 1 medium: 0 low: 0 async 1.5.2 (npm)

pkg:npm/async@1.5.2

high 7.8: CVE--2021--43138 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities

Affected range<2.6.4
Fixed version2.6.4, 3.2.2
CVSS Score7.8
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score0.907%
EPSS Percentile75th percentile
Description

A vulnerability exists in Async through 3.2.1 (fixed in 3.2.2), which could let a malicious user obtain privileges via the mapValues() method.

critical: 0 high: 1 medium: 0 low: 0 async 0.9.2 (npm)

pkg:npm/async@0.9.2

high 7.8: CVE--2021--43138 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities

Affected range<2.6.4
Fixed version2.6.4, 3.2.2
CVSS Score7.8
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score0.907%
EPSS Percentile75th percentile
Description

A vulnerability exists in Async through 3.2.1 (fixed in 3.2.2), which could let a malicious user obtain privileges via the mapValues() method.

critical: 0 high: 1 medium: 0 low: 0 connect-multiparty 2.2.0 (npm)

pkg:npm/connect-multiparty@2.2.0

high 7.8: CVE--2022--29623 Unrestricted Upload of File with Dangerous Type

Affected range<=2.2.0
Fixed versionNot Fixed
CVSS Score7.8
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score0.320%
EPSS Percentile54th percentile
Description

An arbitrary file upload vulnerability in the file upload module of Express Connect-Multiparty 2.2.0 allows attackers to execute arbitrary code via a crafted PDF file. NOTE: the Supplier has not verified this vulnerability report.

@coderabbitai

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Walkthrough

  • Reflowed formatting of the existing fullStoryUrl anchor (indentation/line breaks only).
  • Added template logic to produce a cleaned display label for prodLink:
    • Remove leading "http://" or "https://", split on '/', take first segment, trim, and strip leading "www.".
    • Anchor href remains data.piece.prodLink; visible text uses the cleaned domain.
  • Added rel="noopener noreferrer" to the prodLink anchor and an inline comment noting removal of path/query/fragment.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~6 minutes

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📥 Commits

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📒 Files selected for processing (1)
  • website/modules/case-studies-page/views/show.html (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • website/modules/case-studies-page/views/show.html
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  • Commit unit tests in branch 764-fix/link-to-prod-should-not-contain-http-and-www

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Actionable comments posted: 2

🧹 Nitpick comments (1)
website/modules/case-studies-page/views/show.html (1)

178-186: Confirm acceptance criteria: label vs href

Your change cleans the visible text (good) but keeps the original href (which may still include http:// and www.). The PR title says “Link to prod should not contain http://www.” — if this refers to the label, you’re done; if it refers to the actual href, you’ll need to normalize the URL target as well (e.g., enforce https and strip leading www.).

If href normalization is desired, consider:

  • Enforcing https in the href when input is http (business-dependent).
  • Stripping only a leading www. from the host, leaving subdomains intact.
  • Handling protocol-relative URLs (//example.com/...).

I can provide a safe normalization function on the server side to avoid doing this in the template.

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📥 Commits

Reviewing files that changed from the base of the PR and between dcb132f and ece698e.

📒 Files selected for processing (1)
  • website/modules/case-studies-page/views/show.html (1 hunks)
🧰 Additional context used
🧠 Learnings (1)
📓 Common learnings
Learnt from: yuramax
PR: speedandfunction/website#91
File: website/modules/case-studies-page/views/show.html:32-62
Timestamp: 2025-05-16T15:36:29.877Z
Learning: The "Read The Full Story" button in the case study details page currently uses a placeholder href="#" intentionally, as the final link destination is not yet ready. This is a temporary state during development.
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (4)
  • GitHub Check: security-scan
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🔇 Additional comments (1)
website/modules/case-studies-page/views/show.html (1)

171-176: LGTM: anchor reflow is fine

Only formatting/indentation changed; target and rel remain correct. No functional impact.

Comment thread website/modules/case-studies-page/views/show.html
Comment thread website/modules/case-studies-page/views/show.html
@sonarqubecloud

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@VitalyyP
VitalyyP requested a review from Anton-88 August 16, 2025 14:14
@vasilyyaremchuk
vasilyyaremchuk merged commit 2ed934c into main Aug 17, 2025
12 checks passed
@vasilyyaremchuk
vasilyyaremchuk deleted the 764-fix/link-to-prod-should-not-contain-http-and-www branch August 17, 2025 08:35
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2 participants