CVE-2026-49224 givanz CVE debrief

Who should care

Defenders responsible for Vvveb CMS installations, particularly those with low-privileged authors, should assess exposure and apply the patch to prevent unauthorized access to post revisions.

Why it matters

Defenders should care about CVE-2026-49224 because it allows low-privileged authors to access and manipulate post revisions, potentially leading to unauthorized information disclosure, content corruption, and audit history removal. Vvveb CMS installations with low-privileged authors should verify exposure and apply the patch to 1.0.8.4. Evidence is based on official CVE and NVD records, as well as source references from GitHub, but further verification is needed to determine the full scope of affected versions and deployments.

• An attacker can read historic post content, potentially exposing drafts or sensitive information.
• An attacker can restore a revision over another author's live post content, potentially corrupting published content.
• An attacker can delete revision records, potentially removing audit history.

Technical summary

The Vvveb CMS has a vulnerability allowing low-privileged authors to access revisions for posts owned by another author. This is due to the admin/controller/content/revisions.php controller and admin/sql/sqlite/post_content_revision.sql queries trusting caller-controlled post_id, language_id, and created_at values without consistently applying the current admin_id to revision lists, reads, restores, and deletes.

Defensive priority

Defenders should prioritize verifying exposure and applying the patch for Vvveb versions prior to 1.0.8.4.

Recommended defensive actions

• Verify Vvveb CMS version and apply patch to 1.0.8.4 if necessary
• Restrict access to post revisions for low-privileged authors
• Monitor for suspicious activity related to post revisions
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in Vvveb CMS, which allows low-privileged authors to access revisions for posts owned by another author. Evidence is based on official CVE and NVD records, as well as source references from GitHub.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.