What’s Vulnerable › Vulnerabilities

CVE-2018-10547

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-04-29 · updated 2026-06-17
• Weakness: CWE-79

Description

An issue was discovered in ext/phar/phar_object.c in PHP before 5.6.36, 7.0.x before 7.0.30, 7.1.x before 7.1.17, and 7.2.x before 7.2.5. There is Reflected XSS on the PHAR 403 and 404 error pages via request data of a request for a .phar file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2018-5712.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 17.10, 18.04
• Debian Linux: 7.0, 8.0, 9.0
• NetApp Storage Automation Store: all versions
• PHP: before 5.6.36; from 7.0.0 before 7.0.30; from 7.1.0 before 7.1.17; from 7.2.0 before 7.2.5 — fixed in 5.6.36, 7.0.30, 7.1.17, 7.2.5

How to fix

Upgrade to a fixed version: PHP 5.6.36, 7.0.30, 7.1.17, 7.2.5. Check the vendor advisory for mitigations.

References

• http://php.net/ChangeLog-5.php
• http://php.net/ChangeLog-7.php
• http://www.securitytracker.com/id/1040807
• https://access.redhat.com/errata/RHSA-2019:2519
• https://bugs.php.net/bug.php?id=76129
• https://lists.debian.org/debian-lts-announce/2018/05/msg00004.html
• https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html
• https://security.netapp.com/advisory/ntap-20180607-0003/
• https://usn.ubuntu.com/3646-1/
• https://usn.ubuntu.com/3646-2/
• https://www.debian.org/security/2018/dsa-4240
• https://www.tenable.com/security/tns-2018-12

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