CVE-2011-1487: Perl

Medium severity, CVSS 5.0. EPSS: 10.6% chance of exploitation in the next 30 days.

The (1) lc, (2) lcfirst, (3) uc, and (4) ucfirst functions in Perl 5.10.x, 5.11.x, and 5.12.x through 5.12.3, and 5.13.x through 5.13.11, do not apply the taint attribute to the return value upon processing tainted input, which might allow context-dependent attackers to bypass the taint protection mechanism via a crafted string.

Affected products

• Perl Perl: version 5.10.0 only; version 5.10.1 only; version 5.13.0 only; version 5.13.1 only; version 5.13.2 only; version 5.13.3 only; …

Published 2011-04-11. Last modified 2026-06-16.