CVE-2008-6743: RSMScript 1.21 allows remote attackers to bypass authentication and gain administrative privileges by setting

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HIGH 7.5DOWNGRADE

CVE-2008-6743 is a high-severity flaw (CVSS 7.5) affecting rsmscript. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

RSMScript 1.21 allows remote attackers to bypass authentication and gain administrative privileges by setting the verified cookie to an arbitrary value and performing a direct request to (1) delete.php, (2) edit-submit.php, (3) edit.php, (4) submit.php, and (5) update.php, which bypasses the security check that is performed by verify.php.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-287
Published	2009-04-22
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: shock-therapy

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

Am I affected?

Timeline

2009-04-22 21:30 UTCPublished CVE record published
2026-06-16 23:02 UTCUpdated Record last modified

shock-therapy rsmscript DOWNGRADE

Affected: 1.21

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.21

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.21 (Debian / Ubuntu)

apt-cache madison rsmscript sudo apt install rsmscript=<VERSION_BEFORE_1.21> sudo apt-mark hold rsmscript

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

dnf --showduplicates list rsmscript sudo dnf downgrade rsmscript-<VERSION_BEFORE_1.21> sudo dnf versionlock add rsmscript

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: RSMScript 1.21 - Cross-Site Scripting / Insecure Cookie Handling

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-2008-6743?

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

Is CVE-2008-6743 being exploited?

CVE-2008-6743 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-2008-6743 affect?

CVE-2008-6743 affects rsmscript. Severity is high (CVSS 7.5). RSMScript 1.21 allows remote attackers to bypass authentication and gain administrative privileges by setting the verified cookie to an arbitrary value and performing a direct request to (1) delete.php, (2) edit-submit.php, (3) edit.php, (4

How urgent is CVE-2008-6743?

Priority 53/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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