CVE-2023-33604: Imperial CMS v7.5 was discovered to contain an arbitrary file deletion vulnerability via the DelspReFile funct

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CRITICAL 9.1REMOTEDOWNGRADE

CVE-2023-33604 is a critical-severity flaw (CVSS 9.1) affecting imperial cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Imperial CMS v7.5 was discovered to contain an arbitrary file deletion vulnerability via the DelspReFile function in /sp/ListSp.php. This vulnerability is exploited by attackers via a crafted POST request.

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	0.8% (top 44%)
CISA exploited list	No
Published	2023-06-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: imperial cms project

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

Am I affected?

Timeline

2023-06-07 02:15 UTCPublished CVE record published
2026-06-17 06:01 UTCUpdated Record last modified

imperial cms project imperial cms DOWNGRADE

Affected: 7.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.5

1. Check installed version

apt-cache policy imperial-cms || rpm -q imperial-cms || imperial-cms --version

2. No fixed release: DOWNGRADE to a release before 7.5 (Debian / Ubuntu)

apt-cache madison imperial-cms sudo apt install imperial-cms=<VERSION_BEFORE_7.5> sudo apt-mark hold imperial-cms

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

dnf --showduplicates list imperial-cms sudo dnf downgrade imperial-cms-<VERSION_BEFORE_7.5> sudo dnf versionlock add imperial-cms

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-2023-33604?

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

Is CVE-2023-33604 being exploited?

CVE-2023-33604 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-2023-33604 affect?

CVE-2023-33604 affects imperial cms. Severity is critical (CVSS 9.1). Imperial CMS v7.5 was discovered to contain an arbitrary file deletion vulnerability via the DelspReFile function in /sp/ListSp.php. This vulnerability is exploited by attackers via a crafted POST request.

How urgent is CVE-2023-33604?

Priority 51/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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