Security Digest · Vulnerability record
CVE-2025-65091: XWiki Full Calendar Macro vulnerable to SQL injection through Calendar.JSONService
XWiki Full Calendar Macro displays objects from the wiki on the calendar.
CVSS 10.0 Critical EPSS 0.3% · p25
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.3%, percentile 25: FIRST’s model estimates a 0.3% chance of exploitation activity in the next 30 days, higher than 25% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
org.xwiki.contrib:macro-fullcalendar-pom(Maven) <= 2.4.3, fixed in 2.4.5. Check your lockfile, including transitive dependencies.
What it is
XWiki Full Calendar Macro displays objects from the wiki on the calendar. Prior to version 2.4.5, users with the right to view the Calendar.JSONService page (including guest users) can exploit a SQL injection vulnerability by accessing database info or starting a DoS attack. This issue has been patched in version 2.4.5.
From the GitHub advisory
Impact
Anyone who has view rights on the Calendar.JSONService page, including guest users can exploit this vulnerability by accessing database info or starting a DoS attack.
Workarounds
Remove the Calendar.JSONService page. This will however break some functionalities.
References
Weakness type: CWE-89.
Product: org.xwiki.contrib:macro-fullcalendar-pom (Maven) · Assigned by: GitHub_M · Published: 2026-01-10
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| Maven | org.xwiki.contrib:macro-fullcalendar-pom | <= 2.4.3 | 2.4.5 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| xwiki-contrib | macro-fullcalendar | < 2.4.5 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_M | 3.1 | 10 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: changed (can affect other components)
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 0.33% probability of exploitation activity in the next 30 days; percentile 25.
Timeline
- — GitHub-reviewed advisory GHSA-2g22-wg49-fgv5 published (critical)
- — CVE record published by GitHub_M
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-2g22-wg49-fgv5 github.com
- CVE.org record CVE-2025-65091 cve.org
- NVD entry CVE-2025-65091 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com
- github.com github.com