How severe is CVE-2009-4089?

CVE-2009-4089 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-4089 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4089?

CVE-2009-4089 affects Telepark Telepark.wiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-4089?

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

When was CVE-2009-4089 published?

CVE-2009-4089 was published on 2009-11-29 and last updated on 2026-06-16.

CVE-2009-4089

CVE-2009-4089 is a medium-severity vulnerability in Telepark Telepark.wiki 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-287.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Telepark Telepark.wiki
Published: 2009-11-29
Last modified: 2026-06-16

Description

telepark.wiki 2.4.23 and earlier allows remote attackers to bypass authorization and (1) delete arbitrary pages via a modified pageID parameter to ajax/deletePage.php or (2) delete arbitrary comments via a modified pageID parameter to ajax/deleteComment.php.

Frequently asked questions

What is CVE-2009-4089?: telepark.wiki 2.4.23 and earlier allows remote attackers to bypass authorization and (1) delete arbitrary pages via a modified pageID parameter to ajax/deletePage.php or (2) delete arbitrary comments via a modified pageID parameter to ajax/deleteComment.php.
How severe is CVE-2009-4089?: CVE-2009-4089 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-4089 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4089?: CVE-2009-4089 affects Telepark Telepark.wiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-4089?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4089 published?: CVE-2009-4089 was published on 2009-11-29 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:telepark:telepark.wiki:2.4.23:*:*:*:*:*:*:*

More vulnerabilities in Telepark Telepark.wiki

CVE-2009-4090 — High (CVSS 7.5): Unrestricted file upload vulnerability in ajax/addComment.php in telepark.wiki 2.4.23 and earlier script allows remote…
CVE-2009-4088 — Medium (CVSS 6.8): Multiple directory traversal vulnerabilities in telepark.wiki 2.4.23 and earlier allow remote attackers to read…
CVE-2009-4087 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in index.php in telepark.wiki 2.4.23 and earlier allows remote attackers to…

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →