How severe is CVE-2010-0636?

CVE-2010-0636 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-0636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-0636?

CVE-2010-0636 affects K5n Webcalendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-0636?

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

When was CVE-2010-0636 published?

CVE-2010-0636 was published on 2010-02-12 and last updated on 2026-06-16.

CVE-2010-0636

CVE-2010-0636 is a medium-severity vulnerability in K5n Webcalendar 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: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: K5n Webcalendar
Published: 2010-02-12
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in WebCalendar 1.2.0, and other versions before 1.2.5, allow remote attackers to inject arbitrary web script or HTML via the (1) tab parameter to users.php and the PATH_INFO to (2) day.php, (3) month.php, and (4) week.php. NOTE: some of these details are obtained from third party information.

Frequently asked questions

What is CVE-2010-0636?: Multiple cross-site scripting (XSS) vulnerabilities in WebCalendar 1.2.0, and other versions before 1.2.5, allow remote attackers to inject arbitrary web script or HTML via the (1) tab parameter to users.php and the PATH_INFO to (2) day.php, (3) month.php, and (4) week.php. NOTE: some of these details are obtained from third party information.
How severe is CVE-2010-0636?: CVE-2010-0636 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-0636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-0636?: CVE-2010-0636 affects K5n Webcalendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-0636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-0636 published?: CVE-2010-0636 was published on 2010-02-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:k5n:webcalendar:1.2.0:*:*:*:*:*:*:*

More vulnerabilities in K5n Webcalendar

CVE-2008-2836 — High (CVSS 7.5): PHP remote file inclusion vulnerability in send_reminders.php in WebCalendar 1.0.4 allows remote attackers to execute…
CVE-2007-1483 — High (CVSS 7.5): Multiple PHP remote file inclusion vulnerabilities in WebCalendar 0.9.45 allow remote attackers to execute arbitrary…
CVE-2010-0638 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in WebCalendar 1.2.0 allows remote attackers to hijack the…
CVE-2010-0637 — Medium (CVSS 6.8): Multiple cross-site request forgery (CSRF) vulnerabilities in WebCalendar 1.2.0, and other versions before 1.2.5, allow…
CVE-2024-1097 — Medium (CVSS 5.4): A stored cross-site scripting (XSS) vulnerability exists in craigk5n/webcalendar version 1.3.0. The vulnerability…
CVE-2011-3814 — Medium (CVSS 5.0): WebCalendar 1.2.3, and other versions before 1.2.5, allows remote attackers to obtain sensitive information via a…

All CVEs affecting K5n Webcalendar →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →