Information disclosure in Sensiolabs Symfony
CVE-2020-5274
In Symfony before versions 5.0.5 and 4.4.5, some properties of the Exception were not properly escaped when the `ErrorHandler` rendered it stacktrace. In addition, the stacktrace were displayed even in a non-debug configuration. The ErrorHandler now escape alls properties of the exception, and the stacktrace is only display in debug configuration. This issue is patched in symfony/http-foundation versions 4.4.5 and 5.0.5
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (66.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Sensiolabs Symfony
- Symfony — versions >= 4.0.0, < 4.4.5, >= 5.0.0, < 5.0.5
Weakness classification (CWE)
References
- github.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2 (Third Party Advisory)
- github.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45db (Patch, Third Party Advisory)
- github.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5ad (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-5274?
- CVE-2020-5274 is a medium-severity vulnerability in Sensiolabs Symfony, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 4.6/10. Published 2020-03-30.
- How severe is CVE-2020-5274?
- Medium severity. CVSS v3 base score is 4.6 out of 10.