CVE-2006-1956: The com_rss option (rss.php) in (1) Mambo and (2) Joomla! allows remote attackers to obtain sensitive informat

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MEDIUM 5.0DOWNGRADEDOWNGRADE

CVE-2006-1956 is a medium-severity flaw (CVSS 5.0) affecting joomla, mambo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The com_rss option (rss.php) in (1) Mambo and (2) Joomla! allows remote attackers to obtain sensitive information via an invalid feed parameter, which reveals the path in an error message.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Published	2006-04-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: joomla · mambo

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

Am I affected?

Timeline

2006-04-21 10:02 UTCPublished CVE record published
2026-06-16 22:24 UTCUpdated Record last modified

joomla joomla DOWNGRADE

Affected: 1.0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.7

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.7 (Debian / Ubuntu)

apt-cache madison joomla sudo apt install joomla=<VERSION_BEFORE_1.0.7> sudo apt-mark hold joomla

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

dnf --showduplicates list joomla sudo dnf downgrade joomla-<VERSION_BEFORE_1.0.7> sudo dnf versionlock add joomla

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.

mambo mambo DOWNGRADE

Affected: 4.5.3h h

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.5.3h

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.5.3h (Debian / Ubuntu)

apt-cache madison mambo sudo apt install mambo=<VERSION_BEFORE_4.5.3h> sudo apt-mark hold mambo

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

dnf --showduplicates list mambo sudo dnf downgrade mambo-<VERSION_BEFORE_4.5.3h> sudo dnf versionlock add mambo

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.

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-2006-1956?

joomla: downgrade or apply the listed mitigation; mambo: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-1956 being exploited?

CVE-2006-1956 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-2006-1956 affect?

CVE-2006-1956 affects joomla, mambo. Severity is medium (CVSS 5.0). The com_rss option (rss.php) in (1) Mambo and (2) Joomla! allows remote attackers to obtain sensitive information via an invalid feed parameter, which reveals the path in an error message.

How urgent is CVE-2006-1956?

Priority 41/100. Public exploit reference

Software pages

Joomla vulnerabilities · PHP vulnerabilities

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References

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