7.3

CVE-2026-6735: php_group php Cross-site Scripting

CVSS: 7.3v4.0HighAnalyzed
AliasesUBUNTU-CVE-2026-6735DEBIAN-CVE-2026-6735CGA-5wjf-62j9-j6ch
Published 10-05-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-6735 is a high (CVSS 7.3) Cross-site Scripting vulnerability in php_group php. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
39/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.3/10
010
High · v4.0 (CVE.org)
EPSS score
0.31%
0%100%
Low · +0.10 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 10 · Related 3
MGASA-2026-0127OPENSUSE-SU-2026:10747-1RHSA-2026:14125RHSA-2026:22142RHSA-2026:22143RHSA-2026:22305

Timeline

  1. 10-05-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, 8.5.* before 8.5.6, due to improper sanitation of user data, it allows an attacker to compose an URL, which will cause the target to execute arbitrary JavaScript code (XSS) on the target's machine when the target is viewing the PHP-FPM status page.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

+0.10 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.31%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Php Src

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Ubuntu8 products
  • php5All versions (No fix recorded)
  • php7.0All versions (No fix recorded)
  • php7.2All versions (No fix recorded)
  • php7.4All versions (No fix recorded)
  • php8.1< 8.1.2-1ubuntu2.24
Debian2 products
  • php8.2< 8.2.31-1~deb12u1
  • php8.4< 8.4.21-1~deb13u1 | < 8.4.21-1
Chainguard1 product
  • php-8.2< 8.2.31-r0
Php1 product
  • php≥ 8.2.0, < 8.2.31 | ≥ 8.3.0, < 8.3.31 | ≥ 8.4.0, < 8.4.21 | ≥ 8.5.0, < 8.5.6
Php_group1 product
  • php≥ 8.2.*, < 8.2.31 | ≥ 8.3.*, < 8.3.31 | ≥ 8.4.*, < 8.4.21 | ≥ 8.5.*, < 8.5.6
Wolfi1 product
  • php-8.2< 8.2.31-r0

6 vendors · 14 products

References

6 links