Vulnerability · Published May 27, 2021 · Assigned by redhat

CVE-2020-10688

Medium 6.1

In plain English

A medium-severity cross-site scripting in RESTEasy. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)1.4%top 27.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A cross-site scripting (XSS) flaw was found in RESTEasy in versions before 3.11.1.Final and before 4.5.3.Final, where it did not properly handle URL encoding when the RESTEASY003870 exception occurs. An attacker could use this flaw to launch a reflected XSS attack.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12resteasy3.03.0.26-4DEBIAN-CVE-2020-10688
Debian:13resteasy3.03.0.26-4DEBIAN-CVE-2020-10688
Debian:14resteasy3.03.0.26-4DEBIAN-CVE-2020-10688
Mavenorg.jboss.resteasy:resteasy-bom4.5.3.FinalGHSA-29qj-rvv6-qrmv
Mavenorg.jboss.resteasy:resteasy-bom3.11.1.FinalGHSA-29qj-rvv6-qrmv
Mavenorg.jboss.resteasy:resteasy-core3.11.1.FinalGHSA-29qj-rvv6-qrmv
Mavenorg.jboss.resteasy:resteasy-core4.5.3.FinalGHSA-29qj-rvv6-qrmv
Ubuntu:25.10resteasyno fix listedUBUNTU-CVE-2020-10688
Ubuntu:26.04:LTSresteasyno fix listedUBUNTU-CVE-2020-10688
Ubuntu:26.10resteasyno fix listedUBUNTU-CVE-2020-10688
Ubuntu:22.04:LTSresteasy3.03.0.26-3ubuntu0.1UBUNTU-CVE-2020-10688
Ubuntu:22.04:LTSresteasy3.03.0.26-3ubuntu0.1USN-7630-1
Ubuntu:24.04:LTSresteasy3.03.0.26-6ubuntu0.24.04.1USN-7630-1

Affected products (as reported)

VendorProductVersions
n/a RESTEasy resteasy 3.11.1.Final, resteasy 4.5.3.Final

Weakness: CWE-79

References