Update dependency dompurify to v3.2.4 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
dompurify	3.0.8 → 3.2.4

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

Have a look at your dependency dashboard

---

DOMPurify allows tampering by prototype pollution

CVE-2024-45801 / GHSA-mmhx-hmjr-r674

More information

Details

It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check.

This renders dompurify unable to avoid XSS attack.

Fixed by cure53/DOMPurify@1e52026 (3.x branch) and cure53/DOMPurify@26e1d69 (2.x branch).

Severity

• CVSS Score: 8.3 / 10 (High)
• Vector String: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N

References

• https://github.com/cure53/DOMPurify/security/advisories/GHSA-mmhx-hmjr-r674
• https://github.com/cure53/DOMPurify/commit/1e520262bf4c66b5efda49e2316d6d1246ca7b21
• https://github.com/cure53/DOMPurify/commit/26e1d69ca7f769f5c558619d644d90dd8bf26ebc
• https://nvd.nist.gov/vuln/detail/CVE-2024-45801
• https://github.com/advisories/GHSA-mmhx-hmjr-r674

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

DOMpurify has a nesting-based mXSS

CVE-2024-47875 / GHSA-gx9m-whjm-85jf

More information

Details

DOMpurify was vulnerable to nesting-based mXSS

fixed by 0ef5e537 (2.x) and
merge 943

Backporter should be aware of GHSA-mmhx-hmjr-r674 (CVE-2024-45801) when cherry-picking

POC is avaible under test

Severity

• CVSS Score: 7.9 / 10 (High)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:H

References

• https://github.com/cure53/DOMPurify/security/advisories/GHSA-gx9m-whjm-85jf
• https://nvd.nist.gov/vuln/detail/CVE-2024-47875
• https://github.com/cure53/DOMPurify/commit/0ef5e537a514f904b6aa1d7ad9e749e365d7185f
• https://github.com/cure53/DOMPurify/commit/6ea80cd8b47640c20f2f230c7920b1f4ce4fdf7a
• https://github.com/cure53/DOMPurify/blob/0ef5e537a514f904b6aa1d7ad9e749e365d7185f/test/test-suite.js#L2098
• https://lists.debian.org/debian-lts-announce/2025/02/msg00010.html
• http://seclists.org/fulldisclosure/2025/Apr/14
• https://github.com/advisories/GHSA-gx9m-whjm-85jf

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

DOMPurify allows Cross-site Scripting (XSS)

CVE-2025-26791 / GHSA-vhxf-7vqr-mrjg

More information

Details

DOMPurify before 3.2.4 has an incorrect template literal regular expression when SAFE_FOR_TEMPLATES is set to true, sometimes leading to mutation cross-site scripting (mXSS).

Severity

• CVSS Score: 4.5 / 10 (Medium)
• Vector String: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-26791
• https://github.com/cure53/DOMPurify/commit/d18ffcb554e0001748865da03ac75dd7829f0f02
• https://ensy.zip/posts/dompurify-323-bypass
• https://github.com/cure53/DOMPurify/releases/tag/3.2.4
• https://nsysean.github.io/posts/dompurify-323-bypass
• https://github.com/advisories/GHSA-vhxf-7vqr-mrjg

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

---

Release Notes

cure53/DOMPurify (dompurify)

v3.2.4: DOMPurify 3.2.4

Compare Source

• Fixed a conditional and config dependent mXSS-style bypass reported by @​nsysean
• Added a new feature to allow specific hook removal, thanks @​davecardwell
• Added purify.js and purify.min.js to exports, thanks @​Aetherinox
• Added better logic in case no window object is president, thanks @​yehuya
• Updated some dependencies called out by dependabot
• Updated license files etc to show the correct year

v3.2.3: DOMPurify 3.2.3

Compare Source

• Fixed two conditional sanitizer bypasses discovered by @​parrot409 and @​Slonser
• Updated the attribute clobbering checks to prevent future bypasses, thanks @​parrot409

v3.2.2: DOMPurify 3.2.2

Compare Source

• Fixed a possible bypass in case a rather specific config for custom elements is set, thanks @​yaniv-git
• Fixed several minor issues with the type definitions, thanks again @​reduckted
• Fixed a minor issue with the types reference for trusted types, thanks @​reduckted
• Fixed a minor problem with the template detection regex on some systems, thanks @​svdb99

v3.2.1: DOMPurify 3.2.1

Compare Source

• Fixed several minor issues with the type definitions, thanks @​reduckted @​ghiscoding @​asamuzaK @​MiniDigger
• Fixed an issue with non-minified dist files and order of imports, thanks @​reduckted

v3.2.0: DOMPurify 3.2.0

Compare Source

• Added type declarations, thanks @​reduckted , @​philmayfield, @​aloisklink, @​ssi02014 and others
• Fixed a minor issue with the handling of hooks, thanks @​kevin-mizu

v3.1.7: DOMPurify 3.1.7

Compare Source

• Fixed an issue with comment detection and possible bypasses with specific config settings, thanks @​masatokinugawa
• Fixed several smaller typos in documentation and test & build files, thanks @​christianhg
• Added better support for Angular compiler, thanks @​jeroen1602
• Added several new attributes to HTML and SVG allow-list, thanks @​Gigabyte5671 and @​Rotzbua
• Removed the foreignObject element from the list of HTML entry-points, thanks @​masatokinugawa
• Bumped several dependencies to be more up to date

v3.1.6: DOMPurify 3.1.6

Compare Source

• Fixed an issue with the execution logic of attribute hooks to prevent bypasses, thanks @​kevin-mizu
• Fixed an issue with element removal leading to uncaught errors through DOM Clobbering, thanks @​realansgar
• Fixed a minor problem with the bower file pointing to the wrong dist path
• Fixed several minor typos in docs, comments and comment blocks, thanks @​Rotzbua
• Updated several development dependencies

v3.1.5: DOMPurify 3.1.5

Compare Source

• Fixed a minor issue with the dist paths in bower.js, thanks @​HakumenNC
• Fixed a minor issue with sanitizing HTML coming from copy&paste Word content, thanks @​kakao-bishop-cho

v3.1.4: DOMPurify 3.1.4

Compare Source

• Fixed an issue with the recently implemented isNaN checks, thanks @​tulach
• Added several new popover attributes to allow-list, thanks @​Gigabyte5671
• Fixed the tests and adjusted the test runner to cover all branches

v3.1.3: DOMPurify 3.1.3

Compare Source

• Fixed several mXSS variations found by and thanks to @​kevin-mizu & @​Ry0taK
• Added better configurability for comment scrubbing default behavior
• Added better hardening against Prototype Pollution attacks, thanks @​kevin-mizu
• Added better handling and readability of the nodeType property, thanks @​ssi02014
• Fixed some smaller issues in README and other documentation

v3.1.2: DOMPurify 3.1.2

Compare Source

• Addressed and fixed a mXSS variation found by @​kevin-mizu
• Addressed and fixed a mXSS variation found by Adam Kues of Assetnote
• Updated tests for older Safari and Chrome versions

v3.1.1: DOMPurify 3.1.1

Compare Source

• Fixed an mXSS sanitiser bypass reported by @​icesfont
• Added new code to track element nesting depth
• Added new code to enforce a maximum nesting depth of 255
• Added coverage tests and necessary clobbering protections

Note that this is a security release and should be upgraded to immediately. Please also note that further releases may follow as the underlying vulnerability is apparently new and further variations may be discovered.

v3.1.0: DOMPurify 3.1.0

Compare Source

• Added new setting SAFE_FOR_XML to enable better control over comment scrubbing
• Updated README to warn about happy-dom not being safe for use with DOMPurify yet
• Updated the LICENSE file to show the accurate year number
• Updated several build and test dependencies

v3.0.11: DOMPurify 3.0.11

Compare Source

• Fixed another conditional bypass caused by Processing Instructions, thanks @​Ry0taK
• Fixed the regex for HTML Custom Element detection, thanks @​AlekseySolovey3T

v3.0.10: DOMPurify 3.0.10

Compare Source

• Fixed two possible bypasses when sanitizing an XML document and later using it in HTML, thanks @​Slonser
• Bumped up some build and test dependencies

v3.0.9: DOMPurify 3.0.9

Compare Source

• Fixed a problem with proper detection of Custom Elements, thanks @​kevin-mizu
• Refactored the hasOwnProperty logic, thanks @​ssi02014
• Removed a superfluous console.warn making HappyDom happier, thanks @​HugoPoi
• Modernized some of the demo hooks for better looks, thanks @​Steb95

---

Configuration

📅 Schedule: (in timezone Australia/Sydney)

• Branch creation
  • ""
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.