CVE-2008-1635: Directory traversal vulnerability in view_private.php in Keep It Simple Guest Book (KISGB) 5.0.0 and earlier a

Q: How do I fix CVE-2008-1635?

keep it simple guest book: upgrade to newer than 5.1.1. Exact commands for each OS are on this page.

Q: Is CVE-2008-1635 being exploited?

CVE-2008-1635 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2008-1635 affect?

CVE-2008-1635 affects keep it simple guest book. Severity is high (CVSS 7.5). Directory traversal vulnerability in view_private.php in Keep It Simple Guest Book (KISGB) 5.0.0 and earlier allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the tmp_theme parameter. NOTE: 5.1.1 is

Q: How urgent is CVE-2008-1635?

Priority 53/100. High severity; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2008-1635 is a high-severity flaw (CVSS 7.5) affecting keep it simple guest book. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in view_private.php in Keep It Simple Guest Book (KISGB) 5.0.0 and earlier allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the tmp_theme parameter. NOTE: 5.1.1 is also reportedly affected.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Weakness	CWE-22
Published	2008-04-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: raven php scripts

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

Am I affected?

Timeline

2008-04-02 17:44 UTCPublished CVE record published
2026-06-16 22:52 UTCUpdated Record last modified

raven php scripts keep it simple guest book UPGRADE

Affected: <= 5.1.1

Fixed in: newer than 5.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy keep-it-simple-guest-book || rpm -q keep-it-simple-guest-book || keep-it-simple-guest-book --version

2. UPGRADE to newer than 5.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade keep-it-simple-guest-book

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade keep-it-simple-guest-book

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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: KISGB (tmp_theme) 5.1.1 - Local File Inclusion
Exploit-DB: KISGB 5.1.1 - 'Authenticate.php' 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-2008-1635?

keep it simple guest book: upgrade to newer than 5.1.1. Exact commands for each OS are on this page.

Is CVE-2008-1635 being exploited?

CVE-2008-1635 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-2008-1635 affect?

CVE-2008-1635 affects keep it simple guest book. Severity is high (CVSS 7.5). Directory traversal vulnerability in view_private.php in Keep It Simple Guest Book (KISGB) 5.0.0 and earlier allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the tmp_theme parameter. NOTE: 5.1.1 is

How urgent is CVE-2008-1635?

Priority 53/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-6764 MEDIUM 6.8 UPGRADE PHP remote file inclusion vulnerability in authenticate.php in Keep It Simple Guest Book (KISGB), when executi
CVE-2006-6763 HIGH 7.5 DOWNGRADE Multiple PHP remote file inclusion vulnerabilities in the Keep It Simple Guest Book (KISGB) allow remote attac

References

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