Description
RainLoop Webmail before 1.13.0 lacks XSS protection mechanisms such as xlink:href validation, the X-XSS-Protection header, and the Content-Security-Policy header.
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 10 | rainloop | 1.12.1-2+deb10u1 | DLA-3435-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | rainloop | No fix yet | — |
Advisories 1
- DLA-3435-1 rainloop - security update Debian Security (DSA / DLA) · Mar 9, 2026