CVE-2024-55876

XWiki's scheduler in subwiki allows scheduling operations for any main wiki user

MEDIUM
5.4
CVSS Score
Published: December 12, 2024 at 06:59 PM UTC
Updated: June 17, 2026 at 08:11 AM UTC
1 product affected across 1 vendorXwiki

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

XWiki Platform is a generic wiki platform. Starting in version 1.2-milestone-2 and prior to versions 15.10.9 and 16.3.0, any user with an account on the main wiki could run scheduling operations on subwikis. To reproduce, as a user on the main wiki without any special right, view the document `Scheduler.WebHome` in a subwiki. Then, click on any operation (*e.g.,* Trigger) on any job. If the operation is successful, then the instance is vulnerable. This has been patched in XWiki 15.10.9 and 16.3.0. As a workaround, those who have subwikis where the Job Scheduler is enabled can edit the objects on `Scheduler.WebPreferences` to match the patch.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 15.10.9v < 16.3.01.2.1 ≤ v < 15.10.916.0.0 ≤ v < 16.3.01.21.2 milestone21.2 rc11.2 rc21.2 rc3
Affected range stops below 15.10.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.3.0, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-862

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