GHSA-637H-CH24-XP9M

Vulnerability from github – Published: 2026-01-09 18:35 – Updated: 2026-01-11 14:55
VLAI?
Summary
XWiki Full Calendar Macro vulnerable to data leak through Calendar.JSONService
Details

Impact

Anyone who has view rights on the Calendar.JSONService page, including guest users can exploit this vulnerability by accessing database info, with the exception of passwords.

Workarounds

Remove the Calendar.JSONService page. This will however break some functionalities.

References

Jira issue: * FULLCAL-82: Calendar.JSONService exposes emails of all users

For more information

If you have any questions or comments about this advisory: * Open an issue in Jira XWiki.org * Email us at Security Mailing List

Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.4.5"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.contrib:macro-fullcalendar-pom"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-65090"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-09T18:35:57Z",
    "nvd_published_at": "2026-01-10T04:16:01Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nAnyone who has view rights on the `Calendar.JSONService` page, including guest users can exploit this vulnerability by accessing database info, with the exception of passwords.\n\n### Workarounds\nRemove the `Calendar.JSONService` page. This will however break some functionalities.\n\n### References\n\nJira issue: \n* [FULLCAL-82: Calendar.JSONService exposes emails of all users](https://jira.xwiki.org/browse/FULLCAL-82)\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)",
  "id": "GHSA-637h-ch24-xp9m",
  "modified": "2026-01-11T14:55:42Z",
  "published": "2026-01-09T18:35:57Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki-contrib/macro-fullcalendar/security/advisories/GHSA-637h-ch24-xp9m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-65090"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki-contrib/macro-fullcalendar/commit/25bc14c181c9a92f493b20ac264388c7ba171884"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki-contrib/macro-fullcalendar"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/FULLCAL-82"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "XWiki Full Calendar Macro vulnerable to data leak through Calendar.JSONService"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.