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CVE-2002-1849

ParaChat Server 4.0 does not log users off if the browser's back button is used, which allows...

5.0 Medium

ParaChat Server 4.0 does not log users off if the browser's back button is used, which allows remote attackers to cause a denial of service by repeatedly logging into a chat room, hitting the back button, then logging into the same chat room as a different user, which fills the chat room with invalid users.

Exploit likelihood

2.54%Up 1.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

ParaChat Server 4.0 does not log users off if the browser's back button is used, which allows remote attackers to cause a denial of service by repeatedly logging into a chat room, hitting the back button, then logging into the same chat room as a different user, which fills the chat room with invalid users.

Record
CVE-2002-1849
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated
2026-11-02
CVE List No score

ParaChat Server 4.0 does not log users off if the browser's back button is used, which allows remote attackers to cause a denial of service by repeatedly logging into a chat room, hitting the back button, then logging into the same chat room as a different user, which fills the chat room with invalid users.

Record
CVE-2002-1849
Updated
2026-11-02
EUVDEUVD-2002-1828 No score

ParaChat Server 4.0 does not log users off if the browser's back button is used, which allows remote attackers to cause a denial of service by repeatedly logging into a chat room, hitting the back button, then logging into the same chat room as a different user, which fills the chat room with invalid users.

Record
EUVD-2002-1828
Updated
2026-11-03
GitHub AdvisoriesGHSA-jq4q-qcfh-gq3c No score

ParaChat Server 4.0 does not log users off if the browser's back button is used, which allows...

ParaChat Server 4.0 does not log users off if the browser's back button is used, which allows remote attackers to cause a denial of service by repeatedly logging into a chat room, hitting the back button, then logging into the same chat room as a different user, which fills the chat room with invalid users.

Record
GHSA-jq4q-qcfh-gq3c
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2002-1849 is a medium vulnerability (CVSS 5.0) in Parachat Server, published December 31, 2002. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.54%, the 85th percentile. No source names a fixed version.

References

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