Description
Sage 1.4.3 and earlier extension for Firefox performs certain operations with chrome privileges, which allows remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via the description tag of an RSS feed.
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 5.0 | firefox-sage | 1.4.2-0.1+lenny1 | DSA-1951-1 |
| Debian 4.0 | firefox-sage | 1.3.6-4etch1 | DSA-1951-1 |
Advisories 1
- DSA-1951-1 firefox-sage - insufficient input sanitizing Debian Security (DSA / DLA) · Mar 9, 2026
References
- JVN#99203127 third-party-advisory
- 37466 third-party-advisory
- 37120 vdb-entry
- http://forums.mozillazine.org/viewtopic.php?f=48&t=1603515&start=0
- ADV-2009-3324 vdb-entry
- sage-description-xss(54396) vdb-entry
- JVNDB-2011-000070 third-party-advisory
- http://www.net-security.org/secworld.php?id=8527
- DSA-1951 vendor-advisory