XSS in Seopress

CVE-2021-34641

The SEOPress WordPress plugin is vulnerable to Stored Cross-Site-Scripting via the processPut function found in the ~/src/Actions/Api/TitleDescriptionMeta.php file which allows authenticated attackers to inject arbitrary web scripts, in versions 5.0.0 - 5.0.3.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (47.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

  • Seopress — versions 5.0.0, 5.0.1, 5.0.2

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-34641?
CVE-2021-34641 is a medium-severity vulnerability in Seopress, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2021-08-16.
How severe is CVE-2021-34641?
Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2021-34641 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.