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TI-2024-15654 Aliases CVE-2024-23635GHSA-2mrq-w8pv-5pvq

AntiSamy malicious input can provoke XSS when preserving comments

Priority LOW 27CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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 executable when using AntiSamy's sanitized output. Patched in AntiSamy 1.7.5 and later.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00368 30th percentileScored 2026-11-07
Fix Fixed antisamy (nahsra): 1.7.5org.owasp.antisamy:antisamy (Maven): 1.7.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nahsraantisamybefore 1.7.51.7.5Patch availableCNA
—org.owasp.antisamy:antisamy (Maven)before 1.7.51.7.5Patch availableGHSA-2mrq-w8pv-5pvq
  • antisamy Vendornahsra Affected before 1.7.5 Fixed in 1.7.5 Patch available CNA
  • org.owasp.antisamy:antisamy (Maven) Vendor— Affected before 1.7.5 Fixed in 1.7.5 Patch available GHSA-2mrq-w8pv-5pvq

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:antisamy_project:antisamy:*:*:*:*:*:*:*:*before 1.7.5VulnerableAntisamy Project
  • cpe:2.3:a:antisamy_project:antisamy:*:*:*:*:*:*:*:* Versions before 1.7.5 Vulnerable ·Antisamy Project

Remediation

  • Fix · CNA antisamy (nahsra) Fixed in 1.7.5
  • Fix · GHSA-2mrq-w8pv-5pvq org.owasp.antisamy:antisamy (Maven) Fixed in 1.7.5 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-23635
  2. 2026-10-03 Alias added: GHSA-2mrq-w8pv-5pvq

References

Advisory 2

Other 3

  • TI-2022-11120 Certain Neko-related HTML parsers allow a denial of service via crafted Processing… CVSS 3.1HIGH 7.5
  • TI-2016-08102 In OWASP AntiSamy before 1.5.5, by submitting a specially crafted input (a tag that… CVSS 3.1MEDIUM 6.1
  • TI-2017-10799 OWASP AntiSamy before 1.5.7 allows XSS via HTML5 entities, as demonstrated by use of… CVSS 3.0MEDIUM 6.1
  • TI-2022-12015 OWASP AntiSamy before 1.6.7 allows XSS via HTML tag smuggling on STYLE content with… CVSS 3.1MEDIUM 6.1
  • TI-2021-14007 OWASP AntiSamy before 1.6.4 allows XSS via HTML attributes when using the HTML output… CVSS 3.1MEDIUM 6.1
  • TI-2022-11121 OWASP AntiSamy before 1.6.6 allows XSS via HTML tag smuggling on STYLE content with… CVSS 3.1MEDIUM 6.1
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences