CVE-2026-93769 json
HumHub 1.18.5 - Stored XSS in Profile Field Category title via HForm#renderForm leading to System Administrator account takeover
published 2026-09-23 46 d ago modified 2026-09-23 46 d ago also EUVD-2026-85361
- cvss
- 7.2
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- github.com/humhub/humhub#8499 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 46 d ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.2 | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N |
| CNA | 4.0 | 7.2 | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Humhub Humhub
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/humhub/humhub/pull/8499
patch
-
fluidattacks.com
/advisories/cali
third-party-advisory
-
github.com
/humhub/humhub
product
Sources
- CVE List CVE-2026-93769
- NVD CVE-2026-93769
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