CVE-2018-25246

Wikipedia 12.0 Denial of Service via Search

CVSS 8.7 HIGHEPSS 0.4%CWE-306

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 8.7EPSS 0.4%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

04 Apr 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

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

Affected products

Wikipedia · Wikipedia

public PoCs found — 1

cve_referencewww.exploit-db.com/exploits/45324unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

https://www.exploit-db.com/exploits/45324 https://www.microsoft.com/en-us/p/wikipedia/9wzdncrfhwm4?activetab=pivot%3aoverviewtab