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Fencer Intel
medium 4.3

CVE-2012-4437 json

Cross-site Scripting in SmartyException

published 2012-10-01 14 y ago modified 2026-06-16 4 mo ago also GHSA-9gqj-ppv2-f2hq , EUVD-2022-3376

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in the SmartyException class in Smarty (aka smarty-php) before 3.1.12 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors that trigger a Smarty exception.

Patch / fix

  • packagist smarty/smarty 3.1.12
  • smarty3 Debian 14, Debian 13, Debian 12 3.1.10-2

debian advisories DEBIAN-CVE-2012-4437

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-2012-4437 updated cvss 3.5

php-Smarty: XSS due improper sanitization of messages within SmartyException

  • 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

2.46% chance of exploitation in the next 30 days, higher than 84% 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

Affected packages

ecosystem package affected fixed in
packagist smarty/smarty
<3.1.12
3.1.12

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.