CVE-2024-44902: A deserialization vulnerability in Thinkphp v6.1.3 to v8.0.4 allows attackers to execute arbitrary code.

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2024-44902 is a critical-severity flaw (CVSS 9.8) affecting thinkphp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A deserialization vulnerability in Thinkphp v6.1.3 to v8.0.4 allows attackers to execute arbitrary code.

Why this priority

Critical severity
EPSS top 9%: very likely to be exploited
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	4.2% (top 9%)
CISA exploited list	No
Weakness	CWE-502
Published	2024-09-09
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: thinkphp

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-09-09 20:15 UTCPublished CVE record published
2026-07-05 01:20 UTCUpdated Record last modified

thinkphp thinkphp UPGRADE

Affected: >= 6.1.3 and <= 8.0.4

Fixed in: newer than 8.0.4

Safe to downgrade to: a release before 6.1.3

1. Check installed version

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

2. UPGRADE to newer than 8.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade thinkphp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade thinkphp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 6.1.3 (Debian / Ubuntu)

apt-cache madison thinkphp sudo apt install thinkphp=<VERSION_BEFORE_6.1.3> sudo apt-mark hold thinkphp

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list thinkphp sudo dnf downgrade thinkphp-<VERSION_BEFORE_6.1.3> sudo dnf versionlock add thinkphp

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-2024-44902?

thinkphp: upgrade to newer than 8.0.4. Exact commands for each OS are on this page.

Is CVE-2024-44902 being exploited?

CVE-2024-44902 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-2024-44902 affect?

CVE-2024-44902 affects thinkphp. Severity is critical (CVSS 9.8). A deserialization vulnerability in Thinkphp v6.1.3 to v8.0.4 allows attackers to execute arbitrary code.

How urgent is CVE-2024-44902?

Priority 62/100. Critical severity; EPSS top 9%: very likely to be exploited; Remotely exploitable, no login, no user action

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References

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