How severe is CVE-2010-0642?

CVE-2010-0642 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2010-0642 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-0642?

CVE-2010-0642 affects Cisco Collaboration Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-0642?

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

When was CVE-2010-0642 published?

CVE-2010-0642 was published on 2010-02-17 and last updated on 2026-06-16.

CVE-2010-0642

CVE-2010-0642 is a medium-severity vulnerability in Cisco Collaboration Server with a CVSS 2.0 base score of 5.0. 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-200.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cisco Collaboration Server
Published: 2010-02-17
Last modified: 2026-06-16

Description

Cisco Collaboration Server (CCS) 5 allows remote attackers to read the source code of JHTML files via URL encoded characters in the filename extension, as demonstrated by (1) changing .jhtml to %2Ejhtml, (2) changing .jhtml to .jhtm%6C, (3) appending %00 after .jhtml, and (4) appending %c0%80 after .jhtml, related to the (a) doc/docindex.jhtml, (b) browserId/wizardForm.jhtml, (c) webline/html/forms/callback.jhtml, (d) webline/html/forms/callbackICM.jhtml, (e) webline/html/agent/AgentFrame.jhtml, (f) webline/html/agent/default/badlogin.jhtml, (g) callme/callForm.jhtml, (h) webline/html/multichatui/nowDefunctWindow.jhtml, (i) browserId/wizard.jhtml, (j) admin/CiscoAdmin.jhtml, (k) msccallme/mscCallForm.jhtml, and (l) webline/html/admin/wcs/LoginPage.jhtml components.

Frequently asked questions

What is CVE-2010-0642?: Cisco Collaboration Server (CCS) 5 allows remote attackers to read the source code of JHTML files via URL encoded characters in the filename extension, as demonstrated by (1) changing .jhtml to %2Ejhtml, (2) changing .jhtml to .jhtm%6C, (3) appending %00 after .jhtml, and (4) appending %c0%80 after .jhtml, related to the (a) doc/docindex.jhtml, (b) browserId/wizardForm.jhtml, (c) webline/html/forms/callback.jhtml, (d) webline/html/forms/callbackICM.jhtml, (e) webline/html/agent/AgentFrame.jhtml, (f) webline/html/agent/default/badlogin.jhtml, (g) callme/callForm.jhtml, (h) webline/html/multichatui/nowDefunctWindow.jhtml, (i) browserId/wizard.jhtml, (j) admin/CiscoAdmin.jhtml, (k) msccallme/mscCallForm.jhtml, and (l) webline/html/admin/wcs/LoginPage.jhtml components.
How severe is CVE-2010-0642?: CVE-2010-0642 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2010-0642 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-0642?: CVE-2010-0642 affects Cisco Collaboration Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-0642?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-0642 published?: CVE-2010-0642 was published on 2010-02-17 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:cisco:collaboration_server:5.0:*:*:*:*:*:*:*

More vulnerabilities in Cisco Collaboration Server

CVE-2010-0641 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in webline/html/admin/wcs/LoginPage.jhtml in Cisco Collaboration Server (CCS)…

All CVEs affecting Cisco Collaboration Server →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →