CVE-2020-25912 XML external entity in n/a

Critical 9.1 Published 31 Oct 2021 Updated 9 Jul 2026

An XML External Entity vulnerability in Symphony CMS allows attackers to disclose sensitive information or cause a denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-25912?

CVE-2020-25912 is a critical vulnerability in n/a, published on 31 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A XML External Entity (XXE) vulnerability was discovered in symphony\lib\toolkit\class.xmlelement.php in Symphony 2.7.10 which can lead to an information disclosure or denial of service (DOS).

Weakness: CWE-611

Which versions are affected by CVE-2020-25912?

It affects 1 product.

Products include Getsymphony Symphony.

How do I fix CVE-2020-25912?

No fix has been published for CVE-2020-25912 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-25912 being exploited?

There is no known exploitation of CVE-2020-25912 in the wild and no public exploit code.

Sources

Also known as GHSA-7qfj-ccv6-r868.