CVE-2013-4334: opWebAPIPlugin 0.5.1, 0.4.0, and 0.1.0: XXE Vulnerabilities

This month

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2013-4334 is a critical-severity flaw (CVSS 9.8) affecting opwebapiplugin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

opWebAPIPlugin 0.5.1, 0.4.0, and 0.1.0: XXE Vulnerabilities

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-611
Published	2020-02-07
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: tejimaya

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-02-07 14:15 UTCPublished CVE record published
2026-06-16 23:57 UTCUpdated Record last modified

tejimaya opwebapiplugin DOWNGRADE

Affected: 0.1.0 · 0.4.0 · 0.5.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1.0

1. Check installed version

apt-cache policy opwebapiplugin || rpm -q opwebapiplugin || opwebapiplugin --version

2. No fixed release: DOWNGRADE to a release before 0.1.0 (Debian / Ubuntu)

apt-cache madison opwebapiplugin sudo apt install opwebapiplugin=<VERSION_BEFORE_0.1.0> sudo apt-mark hold opwebapiplugin

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list opwebapiplugin sudo dnf downgrade opwebapiplugin-<VERSION_BEFORE_0.1.0> sudo dnf versionlock add opwebapiplugin

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2013-4334?

opwebapiplugin: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-4334 being exploited?

CVE-2013-4334 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2013-4334 affect?

CVE-2013-4334 affects opwebapiplugin. Severity is critical (CVSS 9.8). opWebAPIPlugin 0.5.1, 0.4.0, and 0.1.0: XXE Vulnerabilities

How urgent is CVE-2013-4334?

Priority 57/100. Critical severity; Remotely exploitable, no login, no user action

References

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