SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-5712

There is Reflected XSS on the PHAR 404 error page via the URI of a request for a .phar file.

MEDIUM 6.1EPSS 79.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 79.9%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

An issue was discovered in PHP before 5.6.33, 7.0.x before 7.0.27, 7.1.x before 7.1.13, and 7.2.x before 7.2.1. There is Reflected XSS on the PHAR 404 error page via the URI of a request for a .phar file.

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
79.95% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
php/php · debian/debian linux · canonical/ubuntu linux
Source
cve@mitre.org
EPSS trend
0%40%80%21 September 2026: 69.51%22 September 2026: 79.95%27 October 2026: 79.95%21 September 202627 October 2026

EPSS moved from 69.5% on 21 September 2026 to 79.9% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.