CVE-2009-0496: Multiple cross-site scripting (XSS) vulnerabilities in Ignite Realtime Openfire 3.6.2 allow remote attackers t

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MEDIUM 4.3DOWNGRADE

CVE-2009-0496 is a medium-severity flaw (CVSS 4.3) affecting openfire. 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 Ignite Realtime Openfire 3.6.2 allow remote attackers to inject arbitrary web script or HTML via the (1) log parameter to (a) logviewer.jsp and (b) log.jsp; (2) search parameter to (c) group-summary.jsp; (3) username parameter to (d) user-properties.jsp; (4) logDir, (5) maxTotalSize, (6) maxFileSize, (7) maxDays, and (8) logTimeout parameters to (e) audit-policy.jsp; (9) propName parameter to

Why this priority

EPSS top 9%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	4.3% (top 9%)
CISA exploited list	No
Weakness	CWE-79
Published	2009-02-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ignite realtime

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

Am I affected?

Timeline

2009-02-10 01:30 UTCPublished CVE record published
2026-06-16 23:05 UTCUpdated Record last modified

ignite realtime openfire DOWNGRADE

Affected: 3.6.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.6.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.6.2 (Debian / Ubuntu)

apt-cache madison openfire sudo apt install openfire=<VERSION_BEFORE_3.6.2> sudo apt-mark hold openfire

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

dnf --showduplicates list openfire sudo dnf downgrade openfire-<VERSION_BEFORE_3.6.2> sudo dnf versionlock add openfire

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: Openfire 3.6.2 - 'group-summary.jsp' Cross-Site Scripting
Exploit-DB: Openfire 3.6.2 - 'log.jsp' Cross-Site Scripting
Exploit-DB: Openfire 3.6.2 - 'user-properties.jsp' Cross-Site Scripting

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-2009-0496?

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

Is CVE-2009-0496 being exploited?

CVE-2009-0496 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-2009-0496 affect?

CVE-2009-0496 affects openfire. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in Ignite Realtime Openfire 3.6.2 allow remote attackers to inject arbitrary web script or HTML via the (1) log parameter to (a) logviewer.jsp and (b) log.jsp; (2) search parameter to (c)

How urgent is CVE-2009-0496?

Priority 43/100. EPSS top 9%: very likely to be exploited; Public exploit reference

Related CVEs

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CVE-2024-25420 HIGH 7.2 UPGRADE An issue in Ignite Realtime Openfire before 4.8.1 allows a remote attacker to escalate privileges via the admi
CVE-2023-32315 HIGH 8.6 EXPLOITED UPGRADE Ignite Realtime Openfire Path Traversal Vulnerability
CVE-2021-45967 CRITICAL 9.8 UPGRADE UPGRADE An issue was discovered in Pascom Cloud Phone System before 7.20.x
CVE-2020-35127 MEDIUM 5.4 DOWNGRADE Ignite Realtime Openfire 4.6.0 has plugins/bookmarks/create-bookmark.jsp Stored XSS.

References

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