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CVE-2026-87939

Feed Block - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-137

Drupal Feed BlockApplications & CMS
Open in ThreatlineRecord JSON
CVSS
4.2Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.16%Chance of exploitation activity in the next 30 days, higher than 4% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in2.0.2Also 3.0.2CVE List
Published22 Oct 2026Updated 22 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Feed Block allows Stored XSS. This issue affects Feed Block versions: from 0.0.0 to 2.0.2, from 3.0.0 to 3.0.2.

Text from CVE List

Affected versions 2

  • Feed Blockaffected: 0.0.0 before 2.0.2CVE List
  • Feed Blockaffected: 3.0.0 before 3.0.2CVE List

References 1