CVE-2007-0926: The dologin function in guestbook.php in KvGuestbook 1.0 Beta allows remote attackers to gain administrative p

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HIGH 7.5DOWNGRADE

CVE-2007-0926 is a high-severity flaw (CVSS 7.5) affecting kvguestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The dologin function in guestbook.php in KvGuestbook 1.0 Beta allows remote attackers to gain administrative privileges, probably via modified $mysql['pass'] and $gbpass variables.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Published	2007-02-14
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: kvguestbook

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

Am I affected?

Timeline

2007-02-14 11:28 UTCPublished CVE record published
2026-06-16 22:36 UTCUpdated Record last modified

kvguestbook kvguestbook DOWNGRADE

Affected: 1.0_beta

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0_beta

1. Check installed version

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

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

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

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

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

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.

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-2007-0926?

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

Is CVE-2007-0926 being exploited?

CVE-2007-0926 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-2007-0926 affect?

CVE-2007-0926 affects kvguestbook. Severity is high (CVSS 7.5). The dologin function in guestbook.php in KvGuestbook 1.0 Beta allows remote attackers to gain administrative privileges, probably via modified $mysql['pass'] and $gbpass variables.

How urgent is CVE-2007-0926?

Priority 44/100. High severity

Software pages

PHP vulnerabilities · MySQL vulnerabilities

References

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