CVE-2024-35324: Douchat 4.0.5 suffers from an arbitrary file upload vulnerability via Public/Plugins/webuploader/server/previe

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2024-35324 is a critical-severity flaw (CVSS 9.8) affecting douchat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Douchat 4.0.5 suffers from an arbitrary file upload vulnerability via Public/Plugins/webuploader/server/preview.php.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
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	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-22
Published	2024-05-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: douchat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-28 16:15 UTCPublished CVE record published
2026-06-17 07:34 UTCUpdated Record last modified

douchat douchat DOWNGRADE

Affected: 4.0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.0.5 (Debian / Ubuntu)

apt-cache madison douchat sudo apt install douchat=<VERSION_BEFORE_4.0.5> sudo apt-mark hold douchat

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

dnf --showduplicates list douchat sudo dnf downgrade douchat-<VERSION_BEFORE_4.0.5> sudo dnf versionlock add douchat

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · sbcl · FIXED · 2.6.10-1.fc46 · FEDORA-2026-feab1a81c6 · source

sudo dnf upgrade --advisory=FEDORA-2026-feab1a81c6

Fedora ELN · python-archspec · FIXED · 0.2.7-1.eln159 · FEDORA-2026-e2a8272db6 · source

sudo dnf upgrade --advisory=FEDORA-2026-e2a8272db6

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/w0x68y/cve-lists/blob/main/CMS/Douchat/Douchat%204.0.5%20arbitrary%20file%20upl

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-2024-35324?

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

Is CVE-2024-35324 being exploited?

CVE-2024-35324 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-2024-35324 affect?

CVE-2024-35324 affects douchat. Severity is critical (CVSS 9.8). Douchat 4.0.5 suffers from an arbitrary file upload vulnerability via Public/Plugins/webuploader/server/preview.php.

How urgent is CVE-2024-35324?

Priority 68/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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