VulnerabilityModified
CVE-2018-19131
Squid before 4.4 has XSS via a crafted X.509 certificate during HTTP(S) error page generation for certificate errors.
MEDIUM 6.1EPSS 3.32%
Does this matter?
Lower severity and a low EPSS score (3.32%). Track it; it rarely justifies an emergency change on its own.
Description
Squid before 4.4 has XSS via a crafted X.509 certificate during HTTP(S) error page generation for certificate errors.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 3.32% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- squid-cache/squid
- Source
- cve@mitre.org
EPSS 3.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.squid-cache.org/Advisories/SQUID-2018_4.txtMitigation, Vendor Advisory
- http://www.squid-cache.org/Versions/v5/changesets/squid-5-6feeb15ff312f3e145763adf8d234ed6a0b3f11d.patchPatch, Vendor Advisory
- https://github.com/squid-cache/squid/pull/306Third Party Advisory
- http://www.squid-cache.org/Advisories/SQUID-2018_4.txtMitigation, Vendor Advisory
- http://www.squid-cache.org/Versions/v5/changesets/squid-5-6feeb15ff312f3e145763adf8d234ed6a0b3f11d.patchPatch, Vendor Advisory
- https://github.com/squid-cache/squid/pull/306Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.