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Fencer Intel
medium 4.3

CVE-2012-6121 json

Cross-site scripting (XSS) vulnerability in Roundcube Webmail before 0.8.5 allows remote attackers to inject arbitrary web script or HTML v…

published 2013-02-24 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-5988

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in Roundcube Webmail before 0.8.5 allows remote attackers to inject arbitrary web script or HTML via a (1) data:text or (2) vbscript link.

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-6121 updated cvss 4.3

roundcubemail: Cross-site scripting (XSS) in vbscript: and data:text URL handling

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.05% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel 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.