CVE-2009-4101 json
infoRSS 1.1.4.2 and earlier extension for Firefox performs certain operations with chrome privileges, which allows remote attackers to exec…
published 2009-11-28 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-4072
- cvss
- 9.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.6%
- EPSS 3.6% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
infoRSS 1.1.4.2 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.
Exploit prediction
3.55% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
secunia.com
/advisories/37467
third-party-advisory, vendor-advisory
-
vupen.com
/english/advisories/2009/3323
vdb-entry, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/54370
vdb-entry
- addons.mozilla.org /en-US/firefox/addons/versions/361#version-1.2.0
Sources
- CVE List CVE-2009-4101
- NVD CVE-2009-4101
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.