CVE-2013-4333: OpenPNE 3 versions 3.8.7, 3.6.11, 3.4.21.1, 3.2.7.6, 3.0.8.5 has an External Entity Injection Vulnerability

This month

CRITICAL 9.1REMOTEDOWNGRADE

CVE-2013-4333 is a critical-severity flaw (CVSS 9.1) affecting openpne. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenPNE 3 versions 3.8.7, 3.6.11, 3.4.21.1, 3.2.7.6, 3.0.8.5 has an External Entity Injection Vulnerability

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	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Weakness	CWE-611
Published	2020-01-24
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

2020-01-24 15:15 UTCPublished CVE record published
2026-06-16 23:57 UTCUpdated Record last modified

tejimaya openpne DOWNGRADE

Affected: 3.0.8.5 · 3.2.7.6 · 3.4.21.1 · 3.6.11 · 3.8.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.8.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.0.8.5 (Debian / Ubuntu)

apt-cache madison openpne sudo apt install openpne=<VERSION_BEFORE_3.0.8.5> sudo apt-mark hold openpne

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

dnf --showduplicates list openpne sudo dnf downgrade openpne-<VERSION_BEFORE_3.0.8.5> sudo dnf versionlock add openpne

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-2013-4333?

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

Is CVE-2013-4333 being exploited?

CVE-2013-4333 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-2013-4333 affect?

CVE-2013-4333 affects openpne. Severity is critical (CVSS 9.1). OpenPNE 3 versions 3.8.7, 3.6.11, 3.4.21.1, 3.2.7.6, 3.0.8.5 has an External Entity Injection Vulnerability

How urgent is CVE-2013-4333?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

References

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