CVE-2005-2956: ATutor 1.5.1, and possibly earlier versions, stores temporary chat logs under the web document root with insuf

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MEDIUM 5.0DOWNGRADE

CVE-2005-2956 is a medium-severity flaw (CVSS 5.0) affecting atutor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ATutor 1.5.1, and possibly earlier versions, stores temporary chat logs under the web document root with insufficient access control and predictable filenames, which allows remote attackers to obtain user chat conversations via direct requests to those files.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.9% (top 13%)
CISA exploited list	No
Published	2005-09-16
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: adaptive technology resource centre

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

Am I affected?

Timeline

2005-09-16 22:03 UTCPublished CVE record published
2026-06-16 22:15 UTCUpdated Record last modified

adaptive technology resource centre atutor DOWNGRADE

Affected: 1.5.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.5.1 (Debian / Ubuntu)

apt-cache madison atutor sudo apt install atutor=<VERSION_BEFORE_1.5.1> sudo apt-mark hold atutor

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

dnf --showduplicates list atutor sudo dnf downgrade atutor-<VERSION_BEFORE_1.5.1> sudo dnf versionlock add atutor

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: ATutor 1.5.1 - Chat Logs Remote Information Disclosure

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-2005-2956?

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

Is CVE-2005-2956 being exploited?

CVE-2005-2956 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-2005-2956 affect?

CVE-2005-2956 affects atutor. Severity is medium (CVSS 5.0). ATutor 1.5.1, and possibly earlier versions, stores temporary chat logs under the web document root with insufficient access control and predictable filenames, which allows remote attackers to obtain user chat conversations via direct reque

How urgent is CVE-2005-2956?

Priority 44/100. Public exploit reference

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CVE-2019-12170 HIGH 8.8 UPGRADE ATutor through 2.2.4 is vulnerable to arbitrary file uploads via the mods/_core/backups/upload.php (aka backup

References

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