How severe is CVE-2009-3891?

CVE-2009-3891 has a CVSS 2.0 base score of 3.5, rated low severity.

Is CVE-2009-3891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3891?

CVE-2009-3891 affects Wordpress. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-3891?

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

When was CVE-2009-3891 published?

CVE-2009-3891 was published on 2009-11-17 and last updated on 2026-06-16.

CVE-2009-3891

CVE-2009-3891 is a low-severity vulnerability in Wordpress 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: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Wordpress
Published: 2009-11-17
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in wp-admin/press-this.php in WordPress before 2.8.6 allows remote authenticated users to inject arbitrary web script or HTML via the s parameter (aka the selection variable).

Frequently asked questions

What is CVE-2009-3891?: Cross-site scripting (XSS) vulnerability in wp-admin/press-this.php in WordPress before 2.8.6 allows remote authenticated users to inject arbitrary web script or HTML via the s parameter (aka the selection variable).
How severe is CVE-2009-3891?: CVE-2009-3891 has a CVSS 2.0 base score of 3.5, rated low severity.
Is CVE-2009-3891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3891?: CVE-2009-3891 affects Wordpress. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-3891?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3891 published?: CVE-2009-3891 was published on 2009-11-17 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

More vulnerabilities in Wordpress

CVE-2012-2400 — Critical (CVSS 10.0): Unspecified vulnerability in wp-includes/js/swfobject.js in WordPress before 3.3.2 has unknown impact and attack…
CVE-2012-2399 — Critical (CVSS 10.0): Cross-site scripting (XSS) vulnerability in swfupload.swf in SWFupload 2.2.0.1 and earlier, as used in WordPress before…
CVE-2011-3125 — Critical (CVSS 10.0): Unspecified vulnerability in WordPress 3.1 before 3.1.3 and 3.2 before Beta 2 has unknown impact and attack vectors…
CVE-2011-3122 — Critical (CVSS 10.0): Unspecified vulnerability in WordPress 3.1 before 3.1.3 and 3.2 before Beta 2 has unknown impact and attack vectors…
CVE-2009-2853 — Critical (CVSS 10.0): Wordpress before 2.8.3 allows remote attackers to gain privileges via a direct request to (1) admin-footer.php, (2)…
CVE-2008-6767 — Critical (CVSS 10.0): wp-admin/upgrade.php in WordPress, probably 2.6.x, allows remote attackers to upgrade the application, and possibly…

All CVEs affecting Wordpress →

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 →