CVE-2006-1505: base_maintenance.php in Basic Analysis and Security Engine (BASE) before 1.2.4 (melissa), when running in stan

This month

MEDIUM 5.0DOWNGRADE

CVE-2006-1505 is a medium-severity flaw (CVSS 5.0) affecting base. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

base_maintenance.php in Basic Analysis and Security Engine (BASE) before 1.2.4 (melissa), when running in standalone mode, allows remote attackers to bypass authentication, possibly by setting the standalone parameter to "yes".

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	1.7% (top 22%)
CISA exploited list	No
Published	2006-03-30
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: basic analysis and security engine

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

Am I affected?

Timeline

2006-03-30 01:06 UTCPublished CVE record published
2026-06-16 22:23 UTCUpdated Record last modified

basic analysis and security engine base DOWNGRADE

Affected: 1.1.2_zora · 1.1.3_lynn · 1.1.4_cheryl · 1.1_elizabeth · 1.2.1_kris · 1.2.2_cindy · 1.2_betty

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.2_zora

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.1.2_zora (Debian / Ubuntu)

apt-cache madison base sudo apt install base=<VERSION_BEFORE_1.1.2_zora> sudo apt-mark hold base

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

dnf --showduplicates list base sudo dnf downgrade base-<VERSION_BEFORE_1.1.2_zora> sudo dnf versionlock add base

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-2006-1505?

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

Is CVE-2006-1505 being exploited?

CVE-2006-1505 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-2006-1505 affect?

CVE-2006-1505 affects base. Severity is medium (CVSS 5.0). base_maintenance.php in Basic Analysis and Security Engine (BASE) before 1.2.4 (melissa), when running in standalone mode, allows remote attackers to bypass authentication, possibly by setting the standalone parameter to "yes".

How urgent is CVE-2006-1505?

Priority 42/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2014-2980 MEDIUM 4.3 UPGRADE Tools/gdomap.c in gdomap in GNUstep Base 1.24.6 and earlier, when run in daemon mode, does not properly handle
CVE-2012-1017 HIGH 7.5 DOWNGRADE Multiple SQL injection vulnerabilities in base_qry_main.php in Basic Analysis and Security Engine (BASE) 1.4.5
CVE-2009-4592 HIGH 7.5 UPGRADE Unspecified vulnerability in base_local_rules.php in Basic Analysis and Security Engine (BASE) before 1.4.4 al
CVE-2009-4591 HIGH 7.5 UPGRADE SQL injection vulnerability in Basic Analysis and Security Engine (BASE) before 1.4.4 allows remote attackers
CVE-2009-4590 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in base_local_rules.php in Basic Analysis and Security Engine (BASE)

References

← Back to latest CVEs