6.1

CVE-2023-43643: antisamy_project antisamy Cross-site Scripting

CVSS: 6.1v3.1MediumModified
AliasesUBUNTU-CVE-2023-43643DEBIAN-CVE-2023-43643GHSA-pcf2-gh6g-h5r2
Published 09-10-2023Last modified 19-09-2024
Open JSON

Vulnerability summary

CVE-2023-43643 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in antisamy_project antisamy. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 44.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.54%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 09-10-2023
    PublishedVulnerability first disclosed.
  2. 19-09-2024
    Last modifiedVulnerability information updated.

Description

AntiSamy is a library for performing fast, configurable cleansing of HTML coming from untrusted sources. Prior to version 1.7.4, 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 and also allow for certain tags at the same time. As a result, certain crafty inputs can result in elements in comment tags being interpreted as executable when using AntiSamy's sanitized output. This issue has been patched in AntiSamy 1.7.4 and later.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.54%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

+0.07 pp

From 0.47% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.54%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Antisamy

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Antisamy_project1 product
Debian1 product
  • libowasp-antisamy-javaAll versions (No fix recorded) | < 1.7.4-1
Nahsra1 product
Org.owasp.antisamy1 product
  • antisamy< 1.7.4
Ubuntu1 product
  • libowasp-antisamy-javaAll versions (No fix recorded)

5 vendors · 5 products

References

8 links