CVE-2005-1819: Cross-site scripting (XSS) vulnerability in NikoSoft WebMail before 0.11.0 allows remote attackers to inject a

Routine

MEDIUM 4.3DOWNGRADE

CVE-2005-1819 is a medium-severity flaw (CVSS 4.3) affecting webmail. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in NikoSoft WebMail before 0.11.0 allows remote attackers to inject arbitrary web script or HTML via unknown vectors.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Published	2005-06-01
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: nikosoft

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

Am I affected?

Timeline

2005-06-01 04:00 UTCPublished CVE record published
2026-06-16 22:13 UTCUpdated Record last modified

nikosoft webmail DOWNGRADE

Affected: 0.1 · 0.2 · 0.3 · 0.4 · 0.5 · 0.7 · 0.7.5 · 0.7.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.1 (Debian / Ubuntu)

apt-cache madison webmail sudo apt install webmail=<VERSION_BEFORE_0.1> sudo apt-mark hold webmail

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

dnf --showduplicates list webmail sudo dnf downgrade webmail-<VERSION_BEFORE_0.1> sudo dnf versionlock add webmail

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-2005-1819?

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

Is CVE-2005-1819 being exploited?

CVE-2005-1819 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-2005-1819 affect?

CVE-2005-1819 affects webmail. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in NikoSoft WebMail before 0.11.0 allows remote attackers to inject arbitrary web script or HTML via unknown vectors.

How urgent is CVE-2005-1819?

Priority 30/100. No elevated risk signals yet.

Related CVEs

CVE-2026-114722 MEDIUM 6.5 UPGRADE Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a CSS scoping bypass in HTML messages
CVE-2026-114723 LOW 3.7 UPGRADE Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 allows the ImageMagick resource limits to be bypassed d
CVE-2026-114727 HIGH 8.3 UPGRADE Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 passes potentially unsafe content into ImageMagick when
CVE-2026-114719 LOW 3.7 UPGRADE Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a CSRF validation bypass in the mark-as-
CVE-2026-114715 MEDIUM 6.8 UPGRADE Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an incorrect authorization vulnerability

References

← Back to latest CVEs