CVE-2020-5255: Prevent cache poisoning via a Response Content-Type header
Vendor fix available · Affected: symfony · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 70% of scored CVEs
DescriptionCVE.org
In Symfony before versions 4.4.7 and 5.0.7, when a `Response` does not contain a `Content-Type` header, affected versions of Symfony can fallback to the format defined in the `Accept` header of the request, leading to a possible mismatch between the response's content and `Content-Type` header. When the response is cached, this can prevent the use of the website by other users. This has been patched in versions 4.4.7 and 5.0.7.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- symfony · symfony>= 4.4.0 and < 4.4.7; >= 5.0.0 and < 5.0.7
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Improper Interaction Between Multiple Correctly-Behaving Entities · Input Validation and Logic
- Vendor
- symfony
- Published
- March 2020
CoverageNo articles yet
No CyberSIXT article names CVE-2020-5255 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-435cwe.mitre.org
- Vendor advisorylists.fedoraproject.org
- github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-48github.com
- github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9cgithub.com
- symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-ressymfony.com