CVE-2009-1946: PHP remote file inclusion vulnerability in latestposts.php in AdaptBB 1.0, when register_globals is enabled, a

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MEDIUM 6.8DOWNGRADE

CVE-2009-1946 is a medium-severity flaw (CVSS 6.8) affecting adaptbb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in latestposts.php in AdaptBB 1.0, when register_globals is enabled, allows remote attackers to execute arbitrary PHP code via a URL in the forumspath parameter.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	1.9% (top 21%)
CISA exploited list	No
Weakness	CWE-94
Published	2009-06-05
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: adaptbb

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

Am I affected?

Timeline

2009-06-05 21:30 UTCPublished CVE record published
2026-06-16 23:08 UTCUpdated Record last modified

adaptbb adaptbb DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison adaptbb sudo apt install adaptbb=<VERSION_BEFORE_1.0> sudo apt-mark hold adaptbb

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

dnf --showduplicates list adaptbb sudo dnf downgrade adaptbb-<VERSION_BEFORE_1.0> sudo dnf versionlock add adaptbb

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: AdaptBB 1.0 - 'forumspath' Remote 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-2009-1946?

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

Is CVE-2009-1946 being exploited?

CVE-2009-1946 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-2009-1946 affect?

CVE-2009-1946 affects adaptbb. Severity is medium (CVSS 6.8). PHP remote file inclusion vulnerability in latestposts.php in AdaptBB 1.0, when register_globals is enabled, allows remote attackers to execute arbitrary PHP code via a URL in the forumspath parameter.

How urgent is CVE-2009-1946?

Priority 49/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2009-1259 MEDIUM 6.8 DOWNGRADE SQL injection vulnerability in inc/bb/topic.php in Insane Visions AdaptBB 1.0, when magic_quotes_gpc is disabl

References

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