CVE-2019-12970

Severity: medium (CVSS 6.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-07-01 · updated 2026-06-17
Weakness: CWE-79

Description

XSS was discovered in SquirrelMail through 1.4.22 and 1.5.x through 1.5.2. Due to improper handling of RCDATA and RAWTEXT type elements, the built-in sanitization mechanism can be bypassed. Malicious script content from HTML e-mail can be executed within the application context via crafted use of (for example) a NOEMBED, NOFRAMES, NOSCRIPT, or TEXTAREA element.

Affected products

SquirrelMail: through 1.4.22; from 1.5.0 through 1.5.2

References

http://packetstormsecurity.com/files/153495/SquirrelMail-1.4.22-Cross-Site-Scripting.html
https://lists.debian.org/debian-lts-announce/2019/08/msg00000.html
https://seclists.org/bugtraq/2019/Jul/0
https://seclists.org/bugtraq/2019/Jul/50
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2019-016.txt
http://packetstormsecurity.com/files/153495/SquirrelMail-1.4.22-Cross-Site-Scripting.html
https://lists.debian.org/debian-lts-announce/2019/08/msg00000.html
https://seclists.org/bugtraq/2019/Jul/0
https://seclists.org/bugtraq/2019/Jul/50
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2019-016.txt

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