CVE-2026-87939

unknown

Published 2026-09-09 · Modified 2026-09-09

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

The Feed Block module provides a block content type that displays items pulled from a remote RSS/Atom feed. The module does not sufficiently validate or sanitize the RSS feed it generates, resulting in a stored cross-site scripting (XSS) vulnerability.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Packagist:https://packages.drupal.org/8	drupal/feed_block	`<2.0.2\|\|>=3.0.0,<3.0.2`	`2.0.2`

References

https://www.drupal.org/sa-contrib-2026-137

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.