CVE-2026-54677

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 71% 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
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

Scoold is a Q&A and a knowledge sharing platform for teams. Prior to 1.69.0, authenticated users who are not members of a private space can create content in questions belonging to that space because src/main/java/com/erudika/scoold/controllers/QuestionController.java in QuestionController.reply() and src/main/java/com/erudika/scoold/controllers/CommentController.java in CommentController.createAjax() do not apply the canAccessSpace authorization check used by the question read path. With scoold.is_default_space_public set to false and private spaces in use, a user with a valid session and a known or enumerable question identifier can send requests to POST /question/{id} and POST /comment, causing replies and comments to be stored in a thread the user cannot read. This permits unauthorized modification of private discussions and can trigger notifications that reveal the existence or metadata of private activity. This issue is fixed in version 1.69.0.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

September 17, 2026

Last Modified

September 24, 2026

Advisory Details (3)

Auto-updated Sep 17, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

1.69.0

Patch available: Erudika/scoold 1.69.0

https://github.com/Erudika/scoold/releases/tag/1.69.0
github_commit Patch Available

commit 6976afb931d0 (Erudika/scoold)

Patch available: Erudika/scoold 1.69.0 (contains commit 6976afb931d0)

https://github.com/Erudika/scoold/commit/6976afb931d025cf0a35b11d6dff4f699dc87981
github Patch Available🟡 PoC Available

Authenticated user can post replies and comments to private-space questions without space membership · Advisory · Erudika/scoold · GitHub

https://github.com/Erudika/scoold/security/advisories/GHSA-h2p4-mm8g-whxr

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 15× 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. 2026-09-24 21:25 UTCEG score recompute
  2. 2026-09-24 21:02 UTCEG score recompute
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 03:09 UTCEG score recompute
  5. 2026-09-23 17:54 UTCEPSS rescore
  6. 2026-09-23 05:20 UTCEG score recompute
  7. 2026-09-22 07:31 UTCEG score recompute
  8. 2026-09-21 09:42 UTCEG score recompute
  9. 2026-09-20 20:16 UTCEPSS rescore
  10. 2026-09-20 11:53 UTCEG score recompute
  11. 2026-09-19 14:04 UTCEG score recompute
  12. 2026-09-18 19:28 UTCEPSS rescore
  13. 2026-09-17 18:26 UTCEG score recompute
  14. 2026-09-17 17:20 UTCEG score recompute
  15. 2026-09-17 17:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54677?
CVE-2026-54677 is a medium vulnerability published on September 17, 2026. Scoold is a Q&A and a knowledge sharing platform for teams. Prior to 1.69.0, authenticated users who are not members of a private space can create content in questions belonging to that space because src/main/java/com/erudika/scoold/controllers/QuestionController.java in QuestionController.reply()…
When was CVE-2026-54677 disclosed?
CVE-2026-54677 was first published in the National Vulnerability Database on September 17, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54677 actively exploited?
CVE-2026-54677 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 71.3% of all scored CVEs.
What is the CVSS score of CVE-2026-54677?
CVE-2026-54677 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-54677?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54677, 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

Explore the affected products and dependency analysis for CVE-2026-54677

Explore →

Is Your Infrastructure Affected by CVE-2026-54677?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs