CVE-2018-5712
MediumThere is Reflected XSS on the PHAR 404 error page via the URI of a request for a .phar file.
Published Jan 16, 2018 · Updated Aug 7, 2026 · Also known as ALPINE-CVE-2018-5712, DEBIAN-CVE-2018-5712, DLA-1251-1, UBUNTU-CVE-2018-5712
Key Facts
Patch immediately- CVE-2018-5712 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting PHP, Ubuntu Linux (Canonical), Debian Linux and 22 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 80% probability of exploitation in the next 30 days.
- Fixed versions are available, including apache2-mod_php5 5.5.14-109.17.1, apache2-mod_php5 5.5.14-91.2, apache2-mod_php53 5.3.17-112.20.1.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
6.1
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
80%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2018-5712 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Affected Products
681 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| PHPPHP | 7.2.0 | 5.6.32 |
| Ubuntu LinuxCanonical | 12.04, 14.04, 16.04, 17.10 | n/a |
| Debian LinuxDebian | 7.0 | n/a |
| php5alpine | See advisory | 5.6.36-r0 |
| php7alpine | See advisory | 7.2.5-r0 |
Patched Releases
apache2-mod_php5
5.5.14-109.17.1, 5.5.14-91.2
apache2-mod_php53
5.3.17-112.20.1
apache2-mod_php7
7.0.7-28.1, 7.0.7-50.26.1
PHP
0:5.4.16-48.el7, 5.4.16-48.el7, <=5.6.32
php-bcmath
5.4.16-48.el7
php-cli
5.4.16-48.el7
php-common
5.4.16-48.el7
php-dba
5.4.16-48.el7
php-devel
5.4.16-48.el7
php-embedded
5.4.16-48.el7
php-enchant
5.4.16-48.el7
php-fpm
5.4.16-48.el7
php-gd
5.4.16-48.el7
php-intl
5.4.16-48.el7
php-ldap
5.4.16-48.el7
php-mbstring
5.4.16-48.el7
php-mysql
5.4.16-48.el7
php-mysqlnd
5.4.16-48.el7
php-odbc
5.4.16-48.el7
php-pdo
5.4.16-48.el7
php-pgsql
5.4.16-48.el7
php-process
5.4.16-48.el7
php-pspell
5.4.16-48.el7
php-recode
5.4.16-48.el7
php-snmp
5.4.16-48.el7
Timeline
Publicly disclosed
Jan 16, 2018
Last updated
Aug 7, 2026
Weakness Type
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- advisoryhttp://php.net/ChangeLog-5.php
- advisoryhttp://php.net/ChangeLog-7.php
- advisoryRHSA-2018:1296
- advisoryRHSA-2020:1112
- advisoryhttps://bugzilla.suse.com/1076220
FAQ
Common Questions.
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.
Affected: PHP versions 7.2.0; Ubuntu Linux (Canonical) versions 12.04, 14.04, 16.04, 17.10; Debian Linux versions 7.0, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including apache2-mod_php5 5.5.14-109.17.1, apache2-mod_php5 5.5.14-91.2, apache2-mod_php53 5.3.17-112.20.1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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