CVE-2017-20239

5.1 mediumEPSS 0.3%

MDwiki contains a cross-site scripting vulnerability that allows remote attackers to execute arbitrary JavaScript by injecting malicious code through the location hash parameter. Attackers can craft URLs with JavaScript payloads in the hash fragment that are parsed and rendered without sanitization, causing the injected scripts to execute in the victim's browser context.

Severity

CVSS 4.0

5.1 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS 3.1

6.1 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-04-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

dynalon:mdwiki

References

https://www.exploit-db.com/exploits/46097
https://www.vulncheck.com/advisories/mdwiki-cross-site-scripting-via-location-hash-parameter

Check your stack JSON