CVE-2006-2735: PHP remote file inclusion vulnerability in language/lang_english/lang_activity.php in Activity MOD Plus (Amod)

This month

MEDIUM 5.1DOWNGRADE

CVE-2006-2735 is a medium-severity flaw (CVSS 5.1) affecting activity mod plus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in language/lang_english/lang_activity.php in Activity MOD Plus (Amod) 1.1.0, as used with phpBB when register_globals is enabled, allows remote attackers to execute arbitrary PHP code via a URL in the phpbb_root_path parameter. NOTE: This is a similar vulnerability to CVE-2006-2507.

Why this priority

EPSS top 6%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	5.1 (Medium)
EPSS exploit chance	7.0% (top 6%)
CISA exploited list	No
Published	2006-06-01
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: activity mod plus

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

Am I affected?

Timeline

2006-06-01 10:02 UTCPublished CVE record published
2026-06-16 22:25 UTCUpdated Record last modified

activity mod plus activity mod plus DOWNGRADE

Affected: 1.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.0

1. Check installed version

apt-cache policy activity-mod-plus || rpm -q activity-mod-plus || activity-mod-plus --version

2. No fixed release: DOWNGRADE to a release before 1.1.0 (Debian / Ubuntu)

apt-cache madison activity-mod-plus sudo apt install activity-mod-plus=<VERSION_BEFORE_1.1.0> sudo apt-mark hold activity-mod-plus

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

dnf --showduplicates list activity-mod-plus sudo dnf downgrade activity-mod-plus-<VERSION_BEFORE_1.1.0> sudo dnf versionlock add activity-mod-plus

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: Activity MOD Plus 1.1.0 - 'phpBB Mod' File Inclusion

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-2006-2735?

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

Is CVE-2006-2735 being exploited?

CVE-2006-2735 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-2006-2735 affect?

CVE-2006-2735 affects activity mod plus. Severity is medium (CVSS 5.1). PHP remote file inclusion vulnerability in language/lang_english/lang_activity.php in Activity MOD Plus (Amod) 1.1.0, as used with phpBB when register_globals is enabled, allows remote attackers to execute arbitrary PHP code via a URL in th

How urgent is CVE-2006-2735?

Priority 46/100. EPSS top 6%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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