CVE-2005-2183: class.xmail.php in PhpXmail 0.7 through 1.1 does not properly handle large passwords, which prevents an error

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HIGH 7.5DOWNGRADE

CVE-2005-2183 is a high-severity flaw (CVSS 7.5) affecting phpxmail. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

class.xmail.php in PhpXmail 0.7 through 1.1 does not properly handle large passwords, which prevents an error message from being returned and allows remote attackers to bypass authentication and gain unauthorized access.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Published	2005-07-11
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phpxmail

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

Am I affected?

Timeline

2005-07-11 04:00 UTCPublished CVE record published
2026-06-16 22:14 UTCUpdated Record last modified

phpxmail phpxmail DOWNGRADE

Affected: 0.7 · 1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.7

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.7 (Debian / Ubuntu)

apt-cache madison phpxmail sudo apt install phpxmail=<VERSION_BEFORE_0.7> sudo apt-mark hold phpxmail

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

dnf --showduplicates list phpxmail sudo dnf downgrade phpxmail-<VERSION_BEFORE_0.7> sudo dnf versionlock add phpxmail

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-2005-2183?

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

Is CVE-2005-2183 being exploited?

CVE-2005-2183 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-2005-2183 affect?

CVE-2005-2183 affects phpxmail. Severity is high (CVSS 7.5). class.xmail.php in PhpXmail 0.7 through 1.1 does not properly handle large passwords, which prevents an error message from being returned and allows remote attackers to bypass authentication and gain unauthorized access.

How urgent is CVE-2005-2183?

Priority 44/100. High severity

Software pages

PHP vulnerabilities

References

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