CVE-2025-58861Network attack vector

Stored XSS through forged privileged-user requests

Published Sep 5, 2025 · Updated May 13, 2026

Cross-site request forgery in WP Corner Quick Event Calendar 1.4.9 and earlier allows remote attackers to create stored XSS payloads. Patchstack has not published the affected request handler, forged parameters, or missing request-validation operation. Exploitation requires an unauthenticated attacker to induce a higher-privileged WordPress user to submit a crafted request, after which the stored payload can execute in visitors' browsers.

CVSS severity7.1
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in WP Corner Quick Event Calendar 1.4.9 and earlier allows remote attackers to create stored XSS payloads. Patchstack has not published the affected request handler, forged parameters, or missing request-validation operation. Exploitation requires an unauthenticated attacker to induce a higher-privileged WordPress user to submit a crafted request, after which the stored payload can execute in visitors' browsers.

The record

CVE
CVE-2025-58861
Published
Sep 5, 2025
Updated
May 13, 2026
Vendor
WP Corner
Product
Quick Event Calendar
Classifications
CWE-352, CAPEC-592, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 5, 2025CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.4.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WP Corner · Quick Event Calendarversion=0 <=1.4.9

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-592Stored XSS
T1204User Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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