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Vulnerability record · CVE-2019-12970 · published 1 July 2019

CVE-2019-12970: Squirrelmail cross-site scripting vulnerability

Squirrelmail · Squirrelmail

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.

6.1 CVSS 3.0 Medium EPSS 1.8% · top 22.1% CWE-79 · Cross-site scripting
6.1CVSS 3.0 base score, v2 4.3
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 6 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2004-0521Sgi propack vulnerabilitySQL injection vulnerability in SquirrelMail before 1.4.3 RC1 allows remote attackers to execute unauthorized SQL statements, with unknown impact, pro…EPSS 3.2%10.0CVE-2002-0516Squirrelmail vulnerabilitySquirrelMail 1.2.5 and earlier allows authenticated SquirrelMail users to execute arbitrary commands by modifying the THEME variable in a cookie.EPSS 11%9.8CVE-2020-14932Squirrelmail deserialization of untrusted data vulnerabilitycompose.php in SquirrelMail 1.4.22 calls unserialize for the $mailtodata value, which originates from an HTTP GET request. This is related to mailto.…EPSS 1.4%8.8CVE-2020-14933Squirrelmail deserialization of untrusted data vulnerabilitycompose.php in SquirrelMail 1.4.22 calls unserialize for the $attachments value, which originates from an HTTP POST request. NOTE: the vendor dispute…EPSS 1.4%8.8CVE-2018-8741Squirrelmail path traversal vulnerabilityA directory traversal flaw in SquirrelMail 1.4.22 allows an authenticated attacker to exfiltrate (or potentially delete) files from the hosting serve…EPSS 4.2%8.8CVE-2017-7692Squirrelmail improper input validation vulnerabilitySquirrelMail 1.4.22 (and other versions before 20170427_0200-SVN) allows post-authentication remote code execution via a sendmail.cf file that is mis…EPSS 32%7.5CVE-2007-3636Squirrelmail gpg plugin vulnerabilityMultiple unspecified vulnerabilities in the G/PGP (GPG) Plugin 2.1 for Squirrelmail allow remote attackers to execute arbitrary commands via unspecif…EPSS 3.1%7.5CVE-2007-2631Squirrelmail vulnerabilityCross-site request forgery (CSRF) vulnerability in SquirrelMail 1.4.8-4.fc6 and earlier allows remote attackers to perform unspecified actions as arb…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2019-12970), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.