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CVE-2002-1131Squirrelmail Vulnerability

Cross-site scripting vulnerabilities in SquirrelMail 1.2.7 and earlier allows remote attackers to execute script as other web users via (1) addressbook.php, (2) options.php, (3) search.php, or (4) help.php.

Published Sep 16, 2002 · Updated Mar 9, 2026 · Also known as DEBIAN-CVE-2002-1131, DEBIAN-CVE-2002-1132, DEBIAN-CVE-2002-1276, DSA-191

Key Facts

Patch immediately
  • CVE-2002-1131 is a high-severity vulnerability (CVSS 7.5 v2) affecting Squirrelmail.
  • It is exploited in the wild, listed in Industry KEV feed since Jun 7, 2025. Public exploit code is available.
  • EPSS estimates a 26% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Squirrelmail 1.2.6-1.1, Squirrelmail 1.2.7.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v2

7.5

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS (30-day exploit likelihood)

26%

Higher than 97.9% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

37/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Jun 7, 2025

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

1

Proof-of-concept links

In-the-wild evidence

3

Reports of active use

Advisories And Exploit References

Description

Cross-site scripting vulnerabilities in SquirrelMail 1.2.7 and earlier allows remote attackers to execute script as other web users via (1) addressbook.php, (2) options.php, (3) search.php, or (4) help.php.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedJun 7, 2025n/aNot reported

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
SquirrelmailSquirrelmailSee advisory1.2.7

Patched Releases

Squirrelmail

1.2.6-1.1, 1.2.7

Timeline

  1. Publicly disclosed

    Sep 16, 2002

  2. Added to Industry KEV feed

    Jun 7, 2025

  3. Last updated

    Mar 9, 2026

References

5 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2002-1131 On Your Attack Surface?

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Figures as of Oct 20, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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