CVE-2021-35043

moderate-risk
Published 2021-07-19

OWASP AntiSamy before 1.6.4 allows XSS via HTML attributes when using the HTML output serializer (XHTML is not affected). This was demonstrated by a javascript: URL with &#00058 as the replacement for the : character.

Do I need to act?

-
0.36% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.1/10 Medium
NETWORK / LOW complexity

Affected Products (20)

Antisamy
Banking Enterprise Default Managment
Banking Party Management

Affected Vendors

Oracle Netapp Antisamy Project

References (12)

Patch https://github.com/nahsra/antisamy/pull/87
Patch https://github.com/nahsra/antisamy/releases/tag/v1.6.4
Patch https://www.oracle.com/security-alerts/cpuapr2022.html
Patch https://www.oracle.com/security-alerts/cpujan2022.html
Patch https://www.oracle.com/security-alerts/cpujul2022.html
Patch https://www.oracle.com/security-alerts/cpuoct2021.html
Patch https://github.com/nahsra/antisamy/pull/87
Patch https://github.com/nahsra/antisamy/releases/tag/v1.6.4
Patch https://www.oracle.com/security-alerts/cpuapr2022.html
Patch https://www.oracle.com/security-alerts/cpujan2022.html
Patch https://www.oracle.com/security-alerts/cpujul2022.html
Patch https://www.oracle.com/security-alerts/cpuoct2021.html
46
/ 100
moderate-risk
Severity 23/34 · High
Exploitability 1/34 · Minimal
Exposure 22/34 · High