CVE-2007-0389: Directory traversal vulnerability in ArsDigita Community System (ACS) 3.4.10 and earlier, and ArsDigita Commun

Q: How do I fix CVE-2007-0389?

arsdigita community education solution: downgrade or apply the listed mitigation; arsdigita community system: upgrade to newer than 3.4.10. Exact commands for each OS are on this page.

Q: Is CVE-2007-0389 being exploited?

CVE-2007-0389 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2007-0389 affect?

CVE-2007-0389 affects arsdigita community education solution, arsdigita community system. Severity is high (CVSS 7.8). Directory traversal vulnerability in ArsDigita Community System (ACS) 3.4.10 and earlier, and ArsDigita Community Education Solution (ACES) 1.1, allows remote attackers to read arbitrary files via .%252e/ (double-encoded dot dot slash) sequ

Q: How urgent is CVE-2007-0389?

Priority 54/100. High severity; Public exploit reference

This month

HIGH 7.8DOWNGRADEUPGRADE

CVE-2007-0389 is a high-severity flaw (CVSS 7.8) affecting arsdigita community education solution, arsdigita community system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in ArsDigita Community System (ACS) 3.4.10 and earlier, and ArsDigita Community Education Solution (ACES) 1.1, allows remote attackers to read arbitrary files via .%252e/ (double-encoded dot dot slash) sequences in the URI.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Published	2007-01-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: arsdigita

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

Am I affected?

Timeline

2007-01-19 23:28 UTCPublished CVE record published
2026-06-16 22:35 UTCUpdated Record last modified

arsdigita arsdigita community education solution DOWNGRADE

Affected: 1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

1. Check installed version

apt-cache policy arsdigita-community-education-solution || rpm -q arsdigita-community-education-solution || arsdigita-community-education-solution --version

2. No fixed release: DOWNGRADE to a release before 1.1 (Debian / Ubuntu)

apt-cache madison arsdigita-community-education-solution sudo apt install arsdigita-community-education-solution=<VERSION_BEFORE_1.1> sudo apt-mark hold arsdigita-community-education-solution

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

dnf --showduplicates list arsdigita-community-education-solution sudo dnf downgrade arsdigita-community-education-solution-<VERSION_BEFORE_1.1> sudo dnf versionlock add arsdigita-community-education-solution

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.

arsdigita arsdigita community system UPGRADE

Affected: <= 3.4.10

Fixed in: newer than 3.4.10

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy arsdigita-community-system || rpm -q arsdigita-community-system || arsdigita-community-system --version

2. UPGRADE to newer than 3.4.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade arsdigita-community-system

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade arsdigita-community-system

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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: ArsDigita Community System 3.4.x - Directory Traversal

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-2007-0389?

arsdigita community education solution: downgrade or apply the listed mitigation; arsdigita community system: upgrade to newer than 3.4.10. Exact commands for each OS are on this page.

Is CVE-2007-0389 being exploited?

CVE-2007-0389 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-2007-0389 affect?

CVE-2007-0389 affects arsdigita community education solution, arsdigita community system. Severity is high (CVSS 7.8). Directory traversal vulnerability in ArsDigita Community System (ACS) 3.4.10 and earlier, and ArsDigita Community Education Solution (ACES) 1.1, allows remote attackers to read arbitrary files via .%252e/ (double-encoded dot dot slash) sequ

How urgent is CVE-2007-0389?

Priority 54/100. High severity; Public exploit reference

References

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