How severe is CVE-2012-4277?

CVE-2012-4277 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-4277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4277?

CVE-2012-4277 primarily affects Smarty. In total, 87 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-4277?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-4277 published?

CVE-2012-4277 was published on 2012-08-13 and last updated on 2026-06-16.

CVE-2012-4277

CVE-2012-4277 is a medium-severity vulnerability in Smarty with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Smarty
Published: 2012-08-13
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the smarty_function_html_options_optoutput function in distribution/libs/plugins/function.html_options.php in Smarty before 3.1.8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2012-4277?: Cross-site scripting (XSS) vulnerability in the smarty_function_html_options_optoutput function in distribution/libs/plugins/function.html_options.php in Smarty before 3.1.8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2012-4277?: CVE-2012-4277 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-4277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4277?: CVE-2012-4277 primarily affects Smarty. In total, 87 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4277?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4277 published?: CVE-2012-4277 was published on 2012-08-13 and last updated on 2026-06-16.

References

Affected products (87)

cpe:2.3:a:smarty:smarty:*:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.0a:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.0b:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.4.0:b1:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.4.0:b2:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.4.3:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.4.4:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.4.5:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.4.6:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.3.1:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.4.2:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.5.0:rc1:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.5.0:rc2:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.6.0:rc1:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.6.0:rc2:*:*:*:*:*:*
cpe:2.3:a:smarty:smarty:2.6.0:rc3:*:*:*:*:*:*

More vulnerabilities in Smarty

CVE-2010-4727 — Critical (CVSS 10.0): Smarty before 3.0.0 beta 7 does not properly handle the <?php and ?> tags, which has unspecified impact and remote…
CVE-2010-4726 — Critical (CVSS 10.0): Unspecified vulnerability in the math plugin in Smarty before 3.0.0 RC1 has unknown impact and remote attack vectors.…
CVE-2010-4725 — Critical (CVSS 10.0): Smarty before 3.0.0 RC3 does not properly handle an on value of the asp_tags option in the php.ini file, which has…
CVE-2010-4724 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in the parser implementation in Smarty before 3.0.0 RC3 have unknown impact and…
CVE-2010-4722 — Critical (CVSS 10.0): Unspecified vulnerability in the fetch plugin in Smarty before 3.0.2 has unknown impact and remote attack vectors.
CVE-2009-5052 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in Smarty before 3.0.0 beta 6 have unknown impact and attack vectors.

All CVEs affecting Smarty →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →