CVE-2025-66473CWE-770denial-of-service

CVE-2025-66473

High · published December 11, 2025

CVSS v3.1
7.5
EPSS
0%
Percentile
33.4
In the wild
Unconfirmed
What it is

⚡ Unrestricted API calls could be your wiki's worst nightmare! An attacker can request all pages in one go, potentially crashing the service. 🔥 Think of it like a buffet with no limits—guests can pile their plates high, leaving no room for others to eat. If too many queries hit the wiki at once, it's like everyone trying to grab food at the same time, causing a serious traffic jam! If exploited, an attacker could overwhelm your XWiki instance with excessive requests, leading to slowness or even complete unavailability. Imagine your wiki turning into a ghost town, inaccessible when users need it the most! This could severely disrupt collaboration and information sharing.

Put simply

Think of it like a buffet with no limits—guests can pile their plates high, leaving no room for others to eat. If too many queries hit the wiki at once, it's like everyone trying to grab food at the same time, causing a serious traffic jam! This vulnerability in XWiki's REST API allows for an unlimited number of items to be requested in a single call. This can overload the server based on the number of pages present, causing performance issues or crashes.

What to do

If exploited, an attacker could overwhelm your XWiki instance with excessive requests, leading to slowness or even complete unavailability. Imagine your wiki turning into a ghost town, inaccessible when users need it the most! This could severely disrupt collaboration and information sharing. Update your XWiki installation to versions 17.4.4 or 16.10.11 to patch this vulnerability. Additionally, consider implementing rate limiting on your API to prevent excessive requests in the future. Regularly monitor your API usage for unusual patterns! You've got this! With these updates and precautions, you can keep your wiki running smoothly and protect it from potential overloads! 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00403 · 33.4th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2025-12-11T03:16Z
Affected products (3)
ProductVersionsFixed in
xwiki/xwiki< 16.10.1116.10.11
xwiki/xwiki≥ 17.0.0, < 17.4.417.4.4
xwiki/xwiki≥ 17.5.0, ≤ 17.6.0—
References (4)
EPSS history
Timeline
  • 10 DEC 21:51Z
    XWiki's REST APIs don't enforce any limits, leading to unavailability and OOM in large wikis
    cvelistv5