CVE-2008-6948: Unrestricted file upload vulnerability in Collabtive 0.4.8 allows remote authenticated users to execute arbitr

This month

MEDIUM 6.5DOWNGRADE

CVE-2008-6948 is a medium-severity flaw (CVSS 6.5) affecting collabtive. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted file upload vulnerability in Collabtive 0.4.8 allows remote authenticated users to execute arbitrary code by uploading a file with an executable extension and using a text/plain MIME type, then accessing it via a direct request to the file in files/, related to (1) the showproject action in managefile.php or (2) the Messages feature.

Why this priority

EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
EPSS exploit chance	7.9% (top 5%)
CISA exploited list	No
Weakness	CWE-20
Published	2009-08-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: collabtive

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

Am I affected?

Timeline

2009-08-12 10:30 UTCPublished CVE record published
2026-06-16 23:03 UTCUpdated Record last modified

collabtive collabtive DOWNGRADE

Affected: 0.4.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.4.8

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.4.8 (Debian / Ubuntu)

apt-cache madison collabtive sudo apt install collabtive=<VERSION_BEFORE_0.4.8> sudo apt-mark hold collabtive

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

dnf --showduplicates list collabtive sudo dnf downgrade collabtive-<VERSION_BEFORE_0.4.8> sudo dnf versionlock add collabtive

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.

Public exploits and detection

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

Exploit-DB: Collabtive 0.4.8 - Cross-Site Scripting / Authentication Bypass / Arbitrary File Upload

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-2008-6948?

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

Is CVE-2008-6948 being exploited?

CVE-2008-6948 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-2008-6948 affect?

CVE-2008-6948 affects collabtive. Severity is medium (CVSS 6.5). Unrestricted file upload vulnerability in Collabtive 0.4.8 allows remote authenticated users to execute arbitrary code by uploading a file with an executable extension and using a text/plain MIME type, then accessing it via a direct request

How urgent is CVE-2008-6948?

Priority 51/100. EPSS top 5%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2021-3298 MEDIUM 5.4 DOWNGRADE Collabtive 3.1 allows XSS when an authenticated user enters an XSS payload into the address section of the pro
CVE-2020-13655 MEDIUM 6.1 DOWNGRADE An issue was discovered in Collabtive 3.0 and later
CVE-2019-8935 MEDIUM 5.4 DOWNGRADE Collabtive 3.1 allows XSS via the manageuser.php?action=profile id parameter.
CVE-2015-0258 HIGH 8.8 UPGRADE MITIGATE Multiple incomplete blacklist vulnerabilities in the avatar upload functionality in manageuser.php in Collabti
CVE-2014-3247 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in Collabtive 1.2 allows remote authenticated users to inject arbitra

References

← Back to latest CVEs