How severe is CVE-2009-3731?

CVE-2009-3731 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2009-3731 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3731?

CVE-2009-3731 primarily affects Webworks Epublisher. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3731?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-3731 published?

CVE-2009-3731 was published on 2009-12-16 and last updated on 2026-06-16.

CVE-2009-3731

CVE-2009-3731 is a medium-severity vulnerability in Webworks Epublisher with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Webworks Epublisher
Published: 2009-12-16
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in WebWorks Help 2.0 through 5.0 in VMware vCenter 4.0 before Update 1 Build 208156; VMware Server 2.0.2; VMware ESX 4.0; VMware Lab Manager 2.x; VMware vCenter Lab Manager 3.x and 4.x before 4.0.1; VMware Stage Manager 1.x before 4.0.1; WebWorks Publisher 6.x through 8.x; WebWorks Publisher 2003; and WebWorks ePublisher 9.0.x through 9.3, 2008.1 through 2008.4, and 2009.x before 2009.3 allow remote attackers to inject arbitrary web script or HTML via (1) wwhelp_entry.html, reachable through index.html and wwhsec.htm, (2) wwhelp/wwhimpl/api.htm, (3) wwhelp/wwhimpl/common/html/frameset.htm, (4) wwhelp/wwhimpl/common/scripts/switch.js, or (5) the window.opener component in wwhelp/wwhimpl/common/html/bookmark.htm, related to (a) unspecified parameters and (b) messages used in topic links for the bookmarking functionality.

Frequently asked questions

What is CVE-2009-3731?: Multiple cross-site scripting (XSS) vulnerabilities in WebWorks Help 2.0 through 5.0 in VMware vCenter 4.0 before Update 1 Build 208156; VMware Server 2.0.2; VMware ESX 4.0; VMware Lab Manager 2.x; VMware vCenter Lab Manager 3.x and 4.x before 4.0.1; VMware Stage Manager 1.x before 4.0.1; WebWorks Publisher 6.x through 8.x; WebWorks Publisher 2003; and WebWorks ePublisher 9.0.x through 9.3, 2008.1 through 2008.4, and 2009.x before 2009.3 allow remote attackers to inject arbitrary web script or HTML via (1) wwhelp_entry.html, reachable through index.html and wwhsec.htm, (2) wwhelp/wwhimpl/api.htm, (3) wwhelp/wwhimpl/common/html/frameset.htm, (4) wwhelp/wwhimpl/common/scripts/switch.js, or (5) the window.opener component in wwhelp/wwhimpl/common/html/bookmark.htm, related to (a) unspecified parameters and (b) messages used in topic links for the bookmarking functionality.
How severe is CVE-2009-3731?: CVE-2009-3731 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2009-3731 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3731?: CVE-2009-3731 primarily affects Webworks Epublisher. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3731?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3731 published?: CVE-2009-3731 was published on 2009-12-16 and last updated on 2026-06-16.

References

Affected products (29)

cpe:2.3:a:webworks:epublisher:9.0:*:*:*:*:*:*:*
cpe:2.3:a:webworks:epublisher:9.1:*:*:*:*:*:*:*
cpe:2.3:a:webworks:epublisher:9.2:*:*:*:*:*:*:*
cpe:2.3:a:webworks:epublisher:9.3:*:*:*:*:*:*:*
cpe:2.3:a:webworks:epublisher:2008.1:*:*:*:*:*:*:*
cpe:2.3:a:webworks:epublisher:2008.2:*:*:*:*:*:*:*
cpe:2.3:a:webworks:epublisher:2008.3:*:*:*:*:*:*:*
cpe:2.3:a:webworks:epublisher:2008.4:*:*:*:*:*:*:*
cpe:2.3:a:webworks:epublisher:2009.1:*:*:*:*:*:*:*
cpe:2.3:a:webworks:epublisher:2009.2:*:*:*:*:*:*:*
cpe:2.3:a:webworks:help:2.0:*:*:*:*:*:*:*
cpe:2.3:a:webworks:help:3.0:*:*:*:*:*:*:*
cpe:2.3:a:webworks:help:4.0:*:*:*:*:*:*:*
cpe:2.3:a:webworks:help:5.0:*:*:*:*:*:*:*
cpe:2.3:a:webworks:publisher:6.0:*:*:*:*:*:*:*
cpe:2.3:a:webworks:publisher:7.0:*:*:*:*:*:*:*
cpe:2.3:a:webworks:publisher:8.0:*:*:*:*:*:*:*
cpe:2.3:a:webworks:publisher:2003:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter:4.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:esx_server:4.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:lab_manager:2.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:server:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:stage_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:stage_manager:1.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_lab_manager:3.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_lab_manager:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_lab_manager:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_lab_manager:4.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter_stage_manager:1.0.1:*:*:*:*:*:*:*

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