CVE-2010-4987: SQL injection vulnerability in default.asp in KMSoft Guestbook (aka GBook) allows remote attackers to execute

This month

HIGH 7.5MITIGATE

CVE-2010-4987 is a high-severity flaw (CVSS 7.5) affecting guestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in default.asp in KMSoft Guestbook (aka GBook) allows remote attackers to execute arbitrary SQL commands via the p parameter.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-89
Published	2011-11-01
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: kmsoft

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

Am I affected?

Timeline

2011-11-01 22:55 UTCPublished CVE record published
2026-06-16 23:25 UTCUpdated Record last modified

kmsoft guestbook MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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: KMSoft GB - SQL Injection

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-2010-4987?

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

Is CVE-2010-4987 being exploited?

CVE-2010-4987 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-2010-4987 affect?

CVE-2010-4987 affects guestbook. Severity is high (CVSS 7.5). SQL injection vulnerability in default.asp in KMSoft Guestbook (aka GBook) allows remote attackers to execute arbitrary SQL commands via the p parameter.

How urgent is CVE-2010-4987?

Priority 47/100. High severity; Public exploit reference

Related CVEs

CVE-2015-0871 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in Mrs
CVE-2014-125053 MEDIUM 5.5 UPGRADE A vulnerability was found in Piwigo-Guest-Book up to 1.3.0

References

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