Medium severity6.1OSV Advisory· Published Jul 20, 2018· Updated Jun 17, 2026
CVE-2017-18343
CVE-2017-18343
Description
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
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2v2.0.0, v2.0.0-RC1, v2.0.0-RC2, …+ 1 more
- (no CPE)range: v2.0.0, v2.0.0-RC1, v2.0.0-RC2, …
- (no CPE)range: <2.7.33, <2.8.26, <3.2.13, <3.3.6
Patches
Vulnerability mechanics
References
4- github.com/symfony/debug/pull/7/commits/e48bda29143bd1a83001780b4a78e483822d985cnvdPatchThird Party Advisory
- github.com/barryvdh/laravel-debugbar/issues/850nvdExploitThird Party Advisory
- github.com/symfony/symfony/issues/27987nvdExploitThird Party Advisory
- github.com/symfony/symfony/pull/23684nvdThird Party Advisory
News mentions
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