CVE-2024-23635: AntiSamy is a library for performing fast, configurable cleansing of HTML coming from untrusted sources

Q: How do I fix CVE-2024-23635?

antisamy: upgrade to 1.7.5. Exact commands for each OS are on this page.

Q: Is CVE-2024-23635 being exploited?

CVE-2024-23635 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-23635 affect?

CVE-2024-23635 affects antisamy. Severity is medium (CVSS 6.1). AntiSamy is a library for performing fast, configurable cleansing of HTML coming from untrusted sources. Prior to 1.7.5, there is a potential for a mutation XSS (mXSS) vulnerability in AntiSamy caused by flawed parsing of the HTML being san

Q: How urgent is CVE-2024-23635?

Priority 29/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2024-23635 is a medium-severity flaw (CVSS 6.1) affecting antisamy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

AntiSamy is a library for performing fast, configurable cleansing of HTML coming from untrusted sources. Prior to 1.7.5, there is a potential for a mutation XSS (mXSS) vulnerability in AntiSamy caused by flawed parsing of the HTML being sanitized. To be subject to this vulnerability the `preserveComments` directive must be enabled in your policy file. As a result, certain crafty inputs can result in elements in comment tags being interpreted as e

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-02-02
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: antisamy project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-02-02 17:15 UTCPublished CVE record published
2026-06-17 07:13 UTCUpdated Record last modified

antisamy project antisamy UPGRADE

Affected: < 1.7.5

Fixed in: 1.7.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy antisamy || rpm -q antisamy || antisamy --version

2. UPGRADE to 1.7.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade antisamy

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade antisamy

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-23635?

antisamy: upgrade to 1.7.5. Exact commands for each OS are on this page.

Is CVE-2024-23635 being exploited?

CVE-2024-23635 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-23635 affect?

CVE-2024-23635 affects antisamy. Severity is medium (CVSS 6.1). AntiSamy is a library for performing fast, configurable cleansing of HTML coming from untrusted sources. Prior to 1.7.5, there is a potential for a mutation XSS (mXSS) vulnerability in AntiSamy caused by flawed parsing of the HTML being san

How urgent is CVE-2024-23635?

Priority 29/100. No elevated risk signals yet.

Related CVEs

CVE-2023-43643 MEDIUM 6.1 UPGRADE AntiSamy is a library for performing fast, configurable cleansing of HTML coming from untrusted sources

References

← Back to latest CVEs