CVE-2017-18343
MEDIUM severity · CVSS 6.1 · Cross-site scripting (XSS)
6.1CVSS MEDIUM
Summary
The debug handler in Symfony before v2.7.33, 2.8.x before v2.8.26, 3.x before v3.2.13, and 3.3.x before v3.3.6 has XSS via an array key during exception pretty printing in ExceptionHandler.php, as demonstrated by a /_debugbar/open?op=get URI. NOTE: the vendor's position is that this is not a vulnerability because the debug tools are not intended for production use. NOTE: the Symfony Debug component is used by Laravel Debugbar
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactLow
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/symfony/debug/pull/7/commits/e48bda29143bd1a83001780b4a78e483822d985c ↗
Additional information
- NVD record
- https://github.com/symfony/debug/pull/7/commits/e48bda29143bd1a83001780b4a78e483822d985cPatch
- https://github.com/symfony/debug/pull/7/commits/e48bda29143bd1a83001780b4a78e483822d985cPatch
- https://github.com/symfony/symfony/pull/23684Advisory
- https://github.com/symfony/symfony/pull/23684Advisory
- https://github.com/barryvdh/laravel-debugbar/issues/850Advisory
- https://github.com/symfony/symfony/issues/27987Advisory
- https://github.com/barryvdh/laravel-debugbar/issues/850Advisory
- https://github.com/symfony/symfony/issues/27987Advisory