CVE-2007-2677: Multiple PHP remote file inclusion vulnerabilities in phpChess Community Edition 2.0 allow remote attackers to

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HIGH 7.5DOWNGRADE

CVE-2007-2677 is a high-severity flaw (CVSS 7.5) affecting phpchess. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple PHP remote file inclusion vulnerabilities in phpChess Community Edition 2.0 allow remote attackers to execute arbitrary PHP code via a URL in (1) the config parameter to includes/language.php, or the Root_Path parameter to (2) layout_admin_cfg.php, (3) layout_cfg.php, or (4) layout_t_top.php in skins/phpchess/. NOTE: vector 1 has been disputed by CVE, since the code is defined within a function that is not called from within includes/la

Why this priority

High severity
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	7.5 (High)
EPSS exploit chance	9.5% (top 5%)
CISA exploited list	No
Published	2007-05-14
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phpchess

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

Am I affected?

Timeline

2007-05-14 23:19 UTCPublished CVE record published
2026-06-16 22:40 UTCUpdated Record last modified

phpchess phpchess DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison phpchess sudo apt install phpchess=<VERSION_BEFORE_2.0> sudo apt-mark hold phpchess

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

dnf --showduplicates list phpchess sudo dnf downgrade phpchess-<VERSION_BEFORE_2.0> sudo dnf versionlock add phpchess

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: phpChess Community Edition 2.0 - Multiple Remote File Inclusions

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-2007-2677?

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

Is CVE-2007-2677 being exploited?

CVE-2007-2677 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-2007-2677 affect?

CVE-2007-2677 affects phpchess. Severity is high (CVSS 7.5). Multiple PHP remote file inclusion vulnerabilities in phpChess Community Edition 2.0 allow remote attackers to execute arbitrary PHP code via a URL in (1) the config parameter to includes/language.php, or the Root_Path parameter to (2) layo

How urgent is CVE-2007-2677?

Priority 55/100. High severity; EPSS top 5%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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