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Fencer Intel
medium 4.3

CVE-2012-1835 json

Multiple cross-site scripting (XSS) vulnerabilities in the All-in-One Event Calendar plugin 1.4 and 1.5 for WordPress allow remote attacker…

published 2012-08-14 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-1845

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.9%
EPSS 8.9% chance of exploitation in 30 days, percentile 95%
public exploits
4
Exploit-DB, plus a Nuclei check

Summary

Multiple cross-site scripting (XSS) vulnerabilities in the All-in-One Event Calendar plugin 1.4 and 1.5 for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) title parameter to app/view/agenda-widget-form.php; (2) args, (3) title, (4) before_title, or (5) after_title parameter to app/view/agenda-widget.php; (6) button_value parameter to app/view/box_publish_button.php; or (7) msg parameter to /app/view/save_successful.php.

Timeline

  1. First public exploit (EDB-37078)
  2. Published

Exploit prediction

8.95% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-37078 WordPress Plugin All-in-One Event Calendar 1.4 - 'agenda-widget.php' Multiple Cross-Site Scripting Vulnerabilities webapps, 2012-04-11
  • EDB-37077 WordPress Plugin All-in-One Event Calendar 1.4 - 'save_successful.php?msg' Cross-Site Scripting webapps, 2012-04-11
  • EDB-37076 WordPress Plugin All-in-One Event Calendar 1.4 - 'box_publish_button.php?button_value' Cross-Site Scripting webapps, 2012-04-11
  • EDB-37075 WordPress Plugin All-in-One Event Calendar 1.4 - 'agenda-widget-form.php?title' Cross-Site Scripting webapps, 2012-04-11
  • Nuclei template WordPress Plugin All-in-One Event Calendar 1.4 - Cross-Site Scripting nuclei detection template
  • securityfocus.com http://www.securityfocus.com/bid/52986 referenced PoC, tagged "exploit" by a source, unverified
  • htbridge.com https://www.htbridge.com/advisory/HTB23082 referenced PoC, tagged "exploit" by a source, unverified
  • archives.neohapsis.com http://archives.neohapsis.com/archives/bugtraq/2012-04/0071.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.