Cross-site scripting in SquirrelMail
Priority LOW 37CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
mime.php in SquirrelMail through 1.4.23-svn-20250401 and 1.5.x through 1.5.2-svn-20250401 allows XSS via e-mail headers, because JavaScript payloads are mishandled after $encoded has been set to true.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0027 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SquirrelMail | SquirrelMail | up to 1.4.23-svn-20250401; 1.5 – 1.5.2-svn-20250401 | — | No fix listed | CNA |
- SquirrelMail VendorSquirrelMail Affected up to 1.4.23-svn-20250401; 1.5 – 1.5.2-svn-20250401 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-30090
- 2026-10-03 Alias added: GHSA-rj9p-v8v3-qjg9
More SquirrelMail vulnerabilities
- TI-2006-02750 PHP remote file inclusion vulnerability in functions/plugin.php in SquirrelMail 1.4.6 and… CVSS 2.0HIGH 7.5
- TI-2017-05328 SquirrelMail 1.4.22 (and other versions before 20170427_0200-SVN) allows… CVSS 3.0HIGH 8.8
- TI-2002-00501 SquirrelMail 1.2.5 and earlier allows authenticated SquirrelMail users to execute… CVSS 2.0HIGH 10.0
- TI-2002-01101 Cross-site scripting vulnerabilities in SquirrelMail 1.2.7 and earlier allows remote… CVSS 2.0HIGH 7.5
- TI-2005-01823 The G/PGP (GPG) Plugin 2.1 and earlier for Squirrelmail allow remote authenticated users… CVSS 2.0HIGH 9.3
- TI-2004-00468 Multiple cross-site scripting (XSS) vulnerabilities in SquirrelMail 1.4.2 allow remote… CVSS 2.0MEDIUM 6.8
Sources
- CVE-2025-30090 · CVE Program
- CVE-2025-30090 · NVD
- FIRST EPSS
- GHSA-rj9p-v8v3-qjg9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences