HumHub 1.18.5 is affected by a stored cross-site scripting (XSS) vulnerability that allows any user holding the delegated, non-system-administrator Manage Users permission (admin_manage_users) to inject persistent HTML/JavaScript into a Profile Field Category title.
CVE-2026-93769
HIGHPre-NVD 7.27.2
EchelonGraph scoreLOW confidence
This high-severity CVE scores 7.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). 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: secondary
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.2Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.2
- EG Score
- 7.2(low)
- EG Risk
- 32(Track)EG Risk 32/100SSVC: 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 computedSeverity72% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
September 23, 2026
Last Modified
September 23, 2026
Advisory Details (2)
Auto-updated Sep 23, 2026Patch available. Sources: github_pr.
github_pr Patch Available
Encode fieldset legend and class in compat HForm
Patch available: humhub/humhub v1.19.0-beta.3 (PR #8499 merged 2026-09-18)
https://github.com/humhub/humhub/pull/8499generic
GitHub - humhub/humhub: HumHub is an Open Source Enterprise Social Network. Easy to install, intuitive to use and extendable with countless freely available modules. · GitHub
https://github.com/humhub/humhubWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 5× 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.
- 2026-09-23 17:18 UTCEG score recompute
- 2026-09-23 16:49 UTCEG score recompute
- 2026-09-23 16:17 UTCEG score recompute
- 2026-09-23 15:54 UTCEG score recompute
- 2026-09-23 15:54 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2026-93769?
CVE-2026-93769 is a high vulnerability published on September 23, 2026. HumHub 1.18.5 is affected by a stored cross-site scripting (XSS) vulnerability that allows any user holding the delegated, non-system-administrator Manage Users permission (adminmanageusers) to inject persistent HTML/JavaScript into a Profile Field Category title.
When was CVE-2026-93769 disclosed?
CVE-2026-93769 was first published in the National Vulnerability Database on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-93769?
CVE-2026-93769 has a CVSS v3 base score of 7.2 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-93769?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-93769, 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-2026-93769
Is Your Infrastructure Affected by CVE-2026-93769?
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