Description
The mail message display page in SquirrelMail through 1.4.22 has XSS via the formaction attribute.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | squirrelmail | 2:1.4.23~svn20120406-2+deb8u3 | DLA-1484-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | squirrelmail | 2:1.4.23~svn20120406-2+deb8u3ubuntu0.16.04.1 | — |
| Ubuntu 14.04 LTS | squirrelmail | 2:1.4.23~svn20120406-2+deb8u3build0.14.04.1 | — |
Advisories 1
- DLA-1484-1 squirrelmail - security update Debian Security (DSA / DLA) · Mar 9, 2026