How severe is CVE-2004-1506?

CVE-2004-1506 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2004-1506 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-1506?

CVE-2004-1506 primarily affects Webcalendar. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-1506?

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

When was CVE-2004-1506 published?

CVE-2004-1506 was published on 2004-12-31 and last updated on 2026-06-16.

CVE-2004-1506

CVE-2004-1506 is a medium-severity vulnerability in 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.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Webcalendar
Published: 2004-12-31
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in WebCalendar allow remote attackers to inject arbitrary web script via (1) view_entry.php, (2) view_d.php, (3) usersel.php, (4) datesel.php, (5) trailer.php, or (6) styles.php, as demonstrated using img srg tags.

Frequently asked questions

What is CVE-2004-1506?: Multiple cross-site scripting (XSS) vulnerabilities in WebCalendar allow remote attackers to inject arbitrary web script via (1) view_entry.php, (2) view_d.php, (3) usersel.php, (4) datesel.php, (5) trailer.php, or (6) styles.php, as demonstrated using img srg tags.
How severe is CVE-2004-1506?: CVE-2004-1506 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2004-1506 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1506?: CVE-2004-1506 primarily affects Webcalendar. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-1506?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-1506 published?: CVE-2004-1506 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (30)

cpe:2.3:a:webcalendar:webcalendar:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.11:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.15:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.16:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.19:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.20:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.21:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.22:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.23:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.24:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.25:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.26:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.27:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.28:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.29:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.30:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.31:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.32:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.33:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.34:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.35:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.36:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.37:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.38:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.39:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.40:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.41:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.42:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.43:*:*:*:*:*:*:*
cpe:2.3:a:webcalendar:webcalendar:0.9.44:*:*:*:*:*:*:*

More vulnerabilities in Webcalendar

CVE-2007-1343 — High (CVSS 7.5): includes/functions.php in Craig Knudsen WebCalendar before 1.0.5 does not protect the noSet variable from external…
CVE-2005-3984 — High (CVSS 7.5): SQL injection vulnerability in WebCalendar 1.0.1 allows remote attackers to execute arbitrary SQL commands via the…
CVE-2005-3949 — High (CVSS 7.5): Multiple SQL injection vulnerabilities in WebCalendar 1.0.1 allow remote attackers to execute arbitrary SQL commands…
CVE-2005-2717 — High (CVSS 7.5): PHP remote file inclusion vulnerability in WebCalendar before 1.0.1 allows remote attackers to execute arbitrary PHP…
CVE-2005-2320 — High (CVSS 7.5): WebCalendar before 1.0.0 does not properly restrict access to assistant_edit.php, which allows remote attackers to gain…
CVE-2004-1508 — High (CVSS 7.5): init.php in WebCalendar allows remote attackers to execute arbitrary local PHP scripts via the user_inc parameter.

All CVEs affecting Webcalendar →