Security readout for executives and security teams
Plain-English summary
HumHub has a stored cross-site scripting flaw in Space names. A highly privileged user who can administer Spaces could save malicious JavaScript in a Space name, affecting other users who later view that Space. This is not unauthenticated, but it can create business risk in multi-admin or delegated administration environments.
Executive priority
Treat this as a moderate-priority patch for HumHub environments. It is less urgent than unauthenticated remote code execution, but it can still affect users who trust internal collaboration spaces, particularly where Space administration is delegated broadly.
Technical view
CVE-2022-31133 is a stored XSS issue in HumHub caused by insufficient escaping of individual Space names. The advisory says exploitation requires permission to administer the Spaces feature. The CVSS 3.1 score is 5.9 with high privileges required, user interaction required, and changed scope.
Likely exposure
Exposure is likely limited to HumHub deployments running affected versions before the fixed releases, especially where multiple users or groups can administer Spaces. The source bundle names humhub/humhub versions below 1.11.4 and recommends 1.11.4 or 1.10.5.
Exploitation context
The sources do not report active exploitation, and KEV status is false. Exploitation requires an attacker with sufficient HumHub privileges to change a Space name and a victim user to visit the affected Space.
Researcher notes
The public description identifies stored XSS in Space name rendering and names fixed versions, but the bundle does not provide evidence of exploitation in the wild. Avoid assuming broader HumHub components are affected without vendor confirmation.
Mitigation direction
- Upgrade HumHub to 1.11.4 or 1.10.5 as recommended by the advisory.
- Review HumHub vendor guidance for any branch-specific update instructions.
- Restrict Space administration permission to trusted administrators until patched.
- After patching, review existing Space names for unexpected or unsafe content.
Validation and detection
- Inventory HumHub instances and record their exact installed versions.
- Confirm production instances are on 1.11.4, 1.10.5, or a later fixed release.
- Review which users and groups can administer the Spaces feature.
- Check audit records or change history for unexpected Space name changes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-31133 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L1.73.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/humhub/humhub/security/advisories/GHSA-p7h3-73v7-959cCVE reference · x_refsource_CONFIRM
- https://github.com/humhub/humhub/commit/07d9f8f9b6334970ee38156a3416c3708d157caeCVE reference · x_refsource_MISC
- https://github.com/humhub/humhub/commit/f88991dfe56a05870df165ac89a2755dd4c1ffa1CVE reference · x_refsource_MISC
- https://huntr.dev/bounties/89d996a2-de30-4261-8e3f-98e54cb25f76CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.