CVE-2005-0303: Multiple cross-site scripting (XSS) vulnerabilities in (1) comersus_supportError.asp or (2) comersus_backoffic

Routine

MEDIUM 4.3DOWNGRADE

CVE-2005-0303 is a medium-severity flaw (CVSS 4.3) affecting comersus backoffice lite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in (1) comersus_supportError.asp or (2) comersus_backofficelite_supportError.asp in BackOffice Lite 6.0 and 6.01 allow remote attackers to inject arbitrary web script or HTML via the error parameter.

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	1.2% (top 33%)
CISA exploited list	No
Published	2005-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: comersus open technologies

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

Am I affected?

Timeline

2005-05-02 04:00 UTCPublished CVE record published
2026-06-16 22:10 UTCUpdated Record last modified

comersus open technologies comersus backoffice lite DOWNGRADE

Affected: 6.0 · 6.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

1. Check installed version

apt-cache policy comersus-backoffice-lite || rpm -q comersus-backoffice-lite || comersus-backoffice-lite --version

2. No fixed release: DOWNGRADE to a release before 6.0 (Debian / Ubuntu)

apt-cache madison comersus-backoffice-lite sudo apt install comersus-backoffice-lite=<VERSION_BEFORE_6.0> sudo apt-mark hold comersus-backoffice-lite

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

dnf --showduplicates list comersus-backoffice-lite sudo dnf downgrade comersus-backoffice-lite-<VERSION_BEFORE_6.0> sudo dnf versionlock add comersus-backoffice-lite

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-2005-0303?

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

Is CVE-2005-0303 being exploited?

CVE-2005-0303 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-2005-0303 affect?

CVE-2005-0303 affects comersus backoffice lite. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in (1) comersus_supportError.asp or (2) comersus_backofficelite_supportError.asp in BackOffice Lite 6.0 and 6.01 allow remote attackers to inject arbitrary web script or HTML via the error

How urgent is CVE-2005-0303?

Priority 32/100. No elevated risk signals yet.

Related CVEs

CVE-2005-3397 MEDIUM 4.3 DOWNGRADE DOWNGRADE Cross-site scripting (XSS) vulnerability in Comersus BackOffice allows remote attackers to inject arbitrary we
CVE-2005-0302 HIGH 7.5 DOWNGRADE SQL injection vulnerability in default.asp in BackOffice Lite 6.0 and 6.01 allows remote attackers to execute
CVE-2005-0301 HIGH 7.5 DOWNGRADE comersus_backoffice_install10.asp in BackOffice Lite 6.0 and 6.01 allows remote attackers to bypass authentica

References

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