How severe is CVE-2012-1495?

CVE-2012-1495 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2012-1495 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 80% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-1495?

CVE-2012-1495 affects Webcalendar Project Webcalendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-1495?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2012-1495 published?

CVE-2012-1495 was published on 2020-01-27 and last updated on 2026-06-16.

CVE-2012-1495

CVE-2012-1495 is a critical-severity vulnerability in Webcalendar Project Webcalendar with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 80% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-74.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 80% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Webcalendar Project Webcalendar
Published: 2020-01-27
Last modified: 2026-06-16

Description

install/index.php in WebCalendar before 1.2.5 allows remote attackers to execute arbitrary code via the form_single_user_login parameter.

Frequently asked questions

What is CVE-2012-1495?: install/index.php in WebCalendar before 1.2.5 allows remote attackers to execute arbitrary code via the form_single_user_login parameter.
How severe is CVE-2012-1495?: CVE-2012-1495 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2012-1495 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 80% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-1495?: CVE-2012-1495 affects Webcalendar Project Webcalendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-1495?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2012-1495 published?: CVE-2012-1495 was published on 2020-01-27 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:webcalendar_project:webcalendar:*:*:*:*:*:*:*:*

More vulnerabilities in Webcalendar Project Webcalendar

CVE-2012-1496 — High (CVSS 8.8): Local file inclusion in WebCalendar before 1.2.5.
CVE-2012-5385 — High (CVSS 7.5): install/index.php in Craig Knudsen WebCalendar before 1.2.5 allows remote attackers to modify settings.php and possibly…
CVE-2024-22635 — Medium (CVSS 6.1): WebCalendar v1.3.0 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the component…
CVE-2017-10840 — Medium (CVSS 6.1): Cross-site scripting vulnerability in WebCalendar 1.2.7 and earlier allows an attacker to inject arbitrary web script…
CVE-2023-0289 — Medium (CVSS 5.4): Cross-site Scripting (XSS) - Stored in GitHub repository craigk5n/webcalendar prior to master.
CVE-2013-1422 — Medium (CVSS 5.3): webcalendar before 1.2.7 shows the reason for a failed login (e.g., "no such user").

All CVEs affecting Webcalendar Project Webcalendar →

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