How severe is CVE-2011-1401?

CVE-2011-1401 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2011-1401 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1401?

CVE-2011-1401 primarily affects Ikiwiki. In total, 174 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1401?

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

When was CVE-2011-1401 published?

CVE-2011-1401 was published on 2011-04-11 and last updated on 2026-06-16.

CVE-2011-1401

CVE-2011-1401 is a low-severity vulnerability in Ikiwiki with a CVSS 2.0 base score of 3.5. 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: Low (CVSS 2.0 base score 3.5)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ikiwiki
Published: 2011-04-11
Last modified: 2026-06-16

Description

ikiwiki before 3.20110328 does not ascertain whether the htmlscrubber plugin is enabled during processing of the "meta stylesheet" directive, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks via crafted Cascading Style Sheets (CSS) token sequences in (1) the default stylesheet or (2) an alternate stylesheet.

Frequently asked questions

What is CVE-2011-1401?: ikiwiki before 3.20110328 does not ascertain whether the htmlscrubber plugin is enabled during processing of the "meta stylesheet" directive, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks via crafted Cascading Style Sheets (CSS) token sequences in (1) the default stylesheet or (2) an alternate stylesheet.
How severe is CVE-2011-1401?: CVE-2011-1401 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2011-1401 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1401?: CVE-2011-1401 primarily affects Ikiwiki. In total, 174 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1401?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1401 published?: CVE-2011-1401 was published on 2011-04-11 and last updated on 2026-06-16.

References

Affected products (174)

cpe:2.3:a:ikiwiki:ikiwiki:*:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.0:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.1:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.1.47:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.2:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.3:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.4:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.5:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.6:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.7:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.8:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.9:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.10:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.11:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.12:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.13:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.14:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.15:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.16:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.17:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.18:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.19:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.20:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.21:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.22:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.23:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.24:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.25:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.26:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.27:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.28:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.29:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.30:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.31:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.32:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.33.3:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.34:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.34.1:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.34.2:*:*:*:*:*:*:*
cpe:2.3:a:ikiwiki:ikiwiki:1.35:*:*:*:*:*:*:*

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