CVE-2018-25246CWE-306

Wikipedia 12.0 Denial of Service via Search

High · published April 4, 2026

CVSS v4.0
8.7
EPSS
0%
Percentile
28.2
In the wild
Unconfirmed
What it is

Wikipedia 12.0 contains a denial of service vulnerability that allows unauthenticated attackers to crash the application by submitting oversized input through the search functionality. Attackers can paste a large buffer of repeated characters into the search bar to trigger an application crash.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00357 · 28.2th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-04-04T19:59Z
EPSS history
Timeline
  • 04 APR 19:59Z
    Wikipedia 12.0 Denial of Service via Search
    cvelistv5