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CVE-2021-29625

Published: 19 May 2021

Adminer is open-source database management software. A cross-site scripting vulnerability in Adminer versions 4.6.1 to 4.8.0 affects users of MySQL, MariaDB, PgSQL and SQLite. XSS is in most cases prevented by strict CSP in all modern browsers. The only exception is when Adminer is using a `pdo_` extension to communicate with the database (it is used if the native extensions are not enabled). In browsers without CSP, Adminer versions 4.6.1 to 4.8.0 are affected. The vulnerability is patched in version 4.8.1. As workarounds, one can use a browser supporting strict CSP or enable the native PHP extensions (e.g. `mysqli`) or disable displaying PHP errors (`display_errors`).

Priority

Medium

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package Release Status
adminer
Launchpad, Ubuntu, Debian
jammy Not vulnerable
(4.8.1-1)
impish Ignored
(end of life)
bionic
Released (4.6.2-1ubuntu0.1~esm1)
Available with Ubuntu Pro
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
trusty Does not exist

upstream
Released (4.8.1)
kinetic Not vulnerable
(4.8.1-1)
focal
Released (4.7.6-1ubuntu0.1~esm1)
Available with Ubuntu Pro
xenial Not vulnerable
(code not present)
lunar Not vulnerable
(4.8.1-1)
mantic Not vulnerable
(4.8.1-1)
Patches:
upstream: https://github.com/vrana/adminer/commit/4043092ec2c0de2258d60a99d0c5958637d051a7

Severity score breakdown

Parameter Value
Base score 6.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N