How severe is CVE-2011-3854?

CVE-2011-3854 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-3854 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3854?

CVE-2011-3854 primarily affects Quirm Zenlite. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3854?

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

When was CVE-2011-3854 published?

CVE-2011-3854 was published on 2011-09-28 and last updated on 2026-06-16.

CVE-2011-3854

CVE-2011-3854 is a medium-severity vulnerability in Quirm Zenlite 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: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Quirm Zenlite
Published: 2011-09-28
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the ZenLite theme before 4.4 for WordPress allows remote attackers to inject arbitrary web script or HTML via the s parameter.

Frequently asked questions

What is CVE-2011-3854?: Cross-site scripting (XSS) vulnerability in the ZenLite theme before 4.4 for WordPress allows remote attackers to inject arbitrary web script or HTML via the s parameter.
How severe is CVE-2011-3854?: CVE-2011-3854 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-3854 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3854?: CVE-2011-3854 primarily affects Quirm Zenlite. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3854?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3854 published?: CVE-2011-3854 was published on 2011-09-28 and last updated on 2026-06-16.

References

Affected products (25)

cpe:2.3:a:quirm:zenlite:*:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:1.0:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:1.1:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:1.2:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:1.3:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:2.0:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:2.1:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:2.2:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:2.4:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:2.5:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:2.6:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:2.7:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.0:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.1:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.2:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.3:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.4:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.5:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.51:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.52:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.60:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:3.61:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:4.0:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:4.1:*:*:*:*:*:*:*
cpe:2.3:a:quirm:zenlite:4.2:*:*:*:*:*:*:*

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

Threat intelligence

Threat-intel indicators referencing this CVE:

64.202.190.35 (ipv4-addr)
134.199.198.226 (ipv4-addr)
157.230.98.178 (ipv4-addr)
103.253.245.96 (ipv4-addr)
164.52.218.210 (ipv4-addr)
164.90.148.8 (ipv4-addr)
213.199.35.105 (ipv4-addr)
47.251.12.114 (ipv4-addr)