The custom-sidebars plugin before 3.0.8.1 for WordPress has CSRF.

published 2019-08-14 7y ago modified 2026-06-17 4mo ago also EUVD-2017-9627

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

Patch / fix

fixed in 1

wpmudev custom_sidebars 3.0.8.1

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Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-352 Cross-Site Request Forgery

Technology feeds

WordPress rss critical rss

References

wordpress.org /plugins/custom-sidebars/#developers
issue-tracking, third-party-advisory

Sources

CVE List CVE-2017-18511
NVD CVE-2017-18511

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.