CVE-2005-3767: Exponent CMS 0.96.3 and later versions does not properly restrict the types of uploaded files, which allows re

Routine

MEDIUM 5.0DOWNGRADE

CVE-2005-3767 is a medium-severity flaw (CVSS 5.0) affecting exponent. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Exponent CMS 0.96.3 and later versions does not properly restrict the types of uploaded files, which allows remote attackers to upload and execute PHP files.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Published	2005-11-22
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: exponent

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

Am I affected?

Timeline

2005-11-22 23:03 UTCPublished CVE record published
2026-06-16 22:17 UTCUpdated Record last modified

exponent exponent DOWNGRADE

Affected: 0.94 · 0.95 · 0.96.1 · 0.96.3 · 0.96.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.94

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.94 (Debian / Ubuntu)

apt-cache madison exponent sudo apt install exponent=<VERSION_BEFORE_0.94> sudo apt-mark hold exponent

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

dnf --showduplicates list exponent sudo dnf downgrade exponent-<VERSION_BEFORE_0.94> sudo dnf versionlock add exponent

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-2005-3767?

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

Is CVE-2005-3767 being exploited?

CVE-2005-3767 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-2005-3767 affect?

CVE-2005-3767 affects exponent. Severity is medium (CVSS 5.0). Exponent CMS 0.96.3 and later versions does not properly restrict the types of uploaded files, which allows remote attackers to upload and execute PHP files.

How urgent is CVE-2005-3767?

Priority 35/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2005-3766 MEDIUM 5.0 DOWNGRADE Exponent CMS 0.96.3 and later versions stores sensitive user pages under the web document root with insufficie
CVE-2005-3765 HIGH 7.5 DOWNGRADE Exponent CMS 0.96.3 and later versions performs a chmod on uploaded files to give them execute permissions, wh
CVE-2005-3764 HIGH 10.0 DOWNGRADE The image gallery (imagegallery) component in Exponent CMS 0.96.3 and later versions does not properly check t
CVE-2005-3763 MEDIUM 5.0 DOWNGRADE Exponent CMS 0.96.3 and later versions includes the full installation path in the base parameter to thumb.php,
CVE-2005-3762 HIGH 7.5 DOWNGRADE SQL injection vulnerability in the navigation module (navigationmodule) in Exponent CMS 0.96.3 and later versi

References

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