High · CVSS 7.2CVE-2026-115541

HumHub 1.19.0 - Stored cross-site scripting in friendship confirmationCVE-2026-115541

Answer in brief

CVE-2026-115541 records a High severity (CVSS 7.2) vulnerability in HumHub 1.19.0 - Stored cross-site scripting in friendship confirmation. The current sources do not mark it as known exploited. The current feed maps HumHub/HumHub Community Edition (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 3, 2026Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Nov 3, 2026Material review Nov 3, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.2
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps HumHub/HumHub Community Edition (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
HumHub/HumHub Community Editiongeneric	>=0 <1.18.7 \|\| >=1.19.0 <1.19.1	1.18.7, 1.19.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for HumHub/HumHub Community Edition.
Review the reported fix. Source-reported solution: Upgrade the current line to HumHub 1.19.2 or later (1.19.3 is the current release), or the 1.18 maintenance line to 1.18.7 or later. The vendor fixed the issue in 1.19.1 and 1.18.7; 1.19.1 was not separately released.

Evidence timeline and material changes

Published upstream
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Nov 3, 2026

Sources and claim methodology

Upstream source description

HumHub Community Edition 1.19.0 contains a stored cross-site scripting vulnerability in the friendship confirmation dialog. An authenticated low-privileged member can save HTML in their first and last name. When another authenticated user clicks Friends for that profile, HumHub places the decoded display name into a modal through jQuery html(), causing attacker-controlled markup to execute in the victim's HumHub origin.

Quoted source text, attributed separately from HOL analysis.

Package

Affected range

Fixed version

HumHub/HumHub Community Editiongeneric

>=0 <1.18.7 || >=1.19.0 <1.19.1

1.18.7, 1.19.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for HumHub/HumHub Community Edition.

Review the reported fix. Source-reported solution: Upgrade the current line to HumHub 1.19.2 or later (1.19.3 is the current release), or the 1.18 maintenance line to 1.18.7 or later. The vendor fixed the issue in 1.19.1 and 1.18.7; 1.19.1 was not separately released.

Sources and claim methodology

Upstream source description

Quoted source text, attributed separately from HOL analysis.