CVE-2010-1540: Directory traversal vulnerability in index.php in the MyBlog (com_myblog) component 3.0.329 for Joomla! allows

This month

MEDIUM 5.0DOWNGRADE

CVE-2010-1540 is a medium-severity flaw (CVSS 5.0) affecting com myblog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in index.php in the MyBlog (com_myblog) component 3.0.329 for Joomla! allows remote attackers to read arbitrary files via a .. (dot dot) in the task parameter. NOTE: some of these details are obtained from third party information.

Why this priority

EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	8.2% (top 5%)
CISA exploited list	No
Weakness	CWE-22
Published	2010-04-26
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

2010-04-26 19:30 UTCPublished CVE record published
2026-06-16 23:18 UTCUpdated Record last modified

myblog com myblog DOWNGRADE

Affected: 3.0.329

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.329

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.0.329 (Debian / Ubuntu)

apt-cache madison com-myblog sudo apt install com-myblog=<VERSION_BEFORE_3.0.329> sudo apt-mark hold com-myblog

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

dnf --showduplicates list com-myblog sudo dnf downgrade com-myblog-<VERSION_BEFORE_3.0.329> sudo dnf versionlock add com-myblog

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: Joomla! Component com_blog - Directory Traversal
Nuclei scan template: Joomla! Component com_blog - Directory Traversal

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-2010-1540?

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

Is CVE-2010-1540 being exploited?

CVE-2010-1540 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-2010-1540 affect?

CVE-2010-1540 affects com myblog. Severity is medium (CVSS 5.0). Directory traversal vulnerability in index.php in the MyBlog (com_myblog) component 3.0.329 for Joomla! allows remote attackers to read arbitrary files via a .. (dot dot) in the task parameter. NOTE: some of these details are obtained from

How urgent is CVE-2010-1540?

Priority 46/100. EPSS top 5%: very likely to be exploited; Public exploit reference

Software pages

Joomla vulnerabilities · PHP vulnerabilities

References

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