CVE-2007-2093: Direct static code injection vulnerability in index.php in Limesoft Guestbook (LS Simple Guestbook) 1.0 allows

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HIGH 7.5DOWNGRADE

CVE-2007-2093 is a high-severity flaw (CVSS 7.5) affecting limesoft guestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Direct static code injection vulnerability in index.php in Limesoft Guestbook (LS Simple Guestbook) 1.0 allows remote attackers to inject arbitrary PHP code into posts.txt via the message parameter.

Why this priority

High severity
EPSS top 1%: 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	45.7% (top 1%)
CISA exploited list	No
Published	2007-04-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: limesoft

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

Am I affected?

Timeline

2007-04-18 10:19 UTCPublished CVE record published
2026-06-16 22:38 UTCUpdated Record last modified

limesoft limesoft guestbook 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 limesoft-guestbook || rpm -q limesoft-guestbook || limesoft-guestbook --version

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

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

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

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

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: LS Simple Guestbook 1.0 - Remote Code Execution

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-2007-2093?

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

Is CVE-2007-2093 being exploited?

CVE-2007-2093 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-2007-2093 affect?

CVE-2007-2093 affects limesoft guestbook. Severity is high (CVSS 7.5). Direct static code injection vulnerability in index.php in Limesoft Guestbook (LS Simple Guestbook) 1.0 allows remote attackers to inject arbitrary PHP code into posts.txt via the message parameter.

How urgent is CVE-2007-2093?

Priority 56/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2007-2092 HIGH 7.5 DOWNGRADE Direct static code injection vulnerability in index.php in Limesoft Guestbook (LS Simple Guestbook) allows rem

References

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