CVE-2026-49227

HIGHPre-NVD 7.67.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 78% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.6Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.4, Vvveb backend comment operations allow a low-privileged Author to manage comments under another Author's posts. The admin/controller/content/comment.php and admin/controller/content/comments.php controllers and the admin/sql/sqlite/comment.sql queries accept a caller-controlled comment_id without verifying comment.post_id against post.admin_id for the current admin_id. An attacker can read pending comment content and commenter email addresses, change moderation status, edit comment content, or delete comments, breaking author and moderation boundaries. This issue is fixed in version 1.0.8.4.

CVSS v3
7.6
EG Score
7.6(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity76% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 18, 2026

Last Modified

August 18, 2026

Advisory Details (3)

Auto-updated Aug 18, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github Patch Available🟡 PoC Available

Vvveb comment authorization bypass allows Authors to read, approve, edit, or delete comments under other Authors' posts · Advisory · givanz/Vvveb · GitHub

https://github.com/givanz/Vvveb/security/advisories/GHSA-26pw-fgm8-2hcf
github_release Patch Available

Vvveb 1.0.8.4

Patch available: givanz/Vvveb 1.0.8.4

https://github.com/givanz/Vvveb/releases/tag/1.0.8.4
github_commit Patch Available

commit 70ec3c69f56d (givanz/Vvveb)

Patch available: givanz/Vvveb 1.0.8.4 (contains commit 70ec3c69f56d)

https://github.com/givanz/Vvveb/commit/70ec3c69f56d56938d96f9bd2c71daf2a7cd787f

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 21× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-27 19:41 UTCEG score recompute
  2. 2026-08-27 14:25 UTCEPSS rescore
  3. 2026-08-26 18:13 UTCEG score recompute
  4. 2026-08-26 14:46 UTCEPSS rescore
  5. 2026-08-25 15:32 UTCEG score recompute
  6. 2026-08-25 13:49 UTCEPSS rescore
  7. 2026-08-25 02:51 UTCEG score recompute
  8. 2026-08-24 14:08 UTCEG score recompute
  9. 2026-08-23 12:42 UTCEG score recompute
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-22 11:18 UTCEG score recompute
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-21 09:54 UTCEG score recompute
  14. 2026-08-20 22:55 UTCEPSS rescore
  15. 2026-08-19 19:48 UTCEG score recompute
  16. 2026-08-19 17:04 UTCEPSS rescore
  17. 2026-08-18 18:24 UTCEG score recompute
  18. 2026-08-18 17:59 UTCEG score recompute
  19. 2026-08-18 16:27 UTCEG score recompute
  20. 2026-08-18 16:12 UTCEG score recompute
  21. 2026-08-18 16:09 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-49227?
CVE-2026-49227 is a high vulnerability published on August 18, 2026. Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.4, Vvveb backend comment operations allow a low-privileged Author to manage comments under another Author's posts. The admin/controller/content/comment.php and…
When was CVE-2026-49227 disclosed?
CVE-2026-49227 was first published in the National Vulnerability Database on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49227 actively exploited?
CVE-2026-49227 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 78.1% of all scored CVEs.
What is the CVSS score of CVE-2026-49227?
CVE-2026-49227 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-49227?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49227, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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