CVE-2008-4341: add.php in MyBlog 0.9.8 and earlier allows remote attackers to bypass authentication and gain administrative a

Q: How do I fix CVE-2008-4341?

myblog: upgrade to newer than 0.9.8. Exact commands for each OS are on this page.

Q: Is CVE-2008-4341 being exploited?

CVE-2008-4341 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-2008-4341 affect?

CVE-2008-4341 affects myblog. Severity is high (CVSS 7.5). add.php in MyBlog 0.9.8 and earlier allows remote attackers to bypass authentication and gain administrative access by setting a cookie with admin=yes and login=admin.

Q: How urgent is CVE-2008-4341?

Priority 52/100. High severity; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2008-4341 is a high-severity flaw (CVSS 7.5) affecting myblog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

add.php in MyBlog 0.9.8 and earlier allows remote attackers to bypass authentication and gain administrative access by setting a cookie with admin=yes and login=admin.

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	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-264
Published	2008-09-30
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: myblog

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

Am I affected?

Timeline

2008-09-30 17:22 UTCPublished CVE record published
2026-06-16 22:57 UTCUpdated Record last modified

myblog myblog UPGRADE

Affected: <= 0.9.8

Fixed in: newer than 0.9.8

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.9.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade myblog

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade myblog

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: MyBlog 0.9.8 - Insecure Cookie Handling

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-2008-4341?

myblog: upgrade to newer than 0.9.8. Exact commands for each OS are on this page.

Is CVE-2008-4341 being exploited?

CVE-2008-4341 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-2008-4341 affect?

CVE-2008-4341 affects myblog. Severity is high (CVSS 7.5). add.php in MyBlog 0.9.8 and earlier allows remote attackers to bypass authentication and gain administrative access by setting a cookie with admin=yes and login=admin.

How urgent is CVE-2008-4341?

Priority 52/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2024-13192 LOW 3.5 DOWNGRADE A vulnerability, which was classified as problematic, was found in ZeroWdd myblog 1.0
CVE-2024-13191 MEDIUM 6.3 DOWNGRADE A vulnerability, which was classified as critical, has been found in ZeroWdd myblog 1.0
CVE-2024-13189 HIGH 7.3 DOWNGRADE A vulnerability classified as critical has been found in ZeroWdd myblog 1.0
CVE-2008-6193 MEDIUM 5.0 MITIGATE Sam Crew MyBlog stores passwords in cleartext in a MySQL database, which allows context-dependent attackers to
CVE-2008-2963 MEDIUM 6.8 MITIGATE Multiple SQL injection vulnerabilities in MyBlog allow remote attackers to execute arbitrary SQL commands via

References

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