CVE-2015-4089 — Multiple cross-site request forgery (CSRF) vulnerabilities in the optionsPageRequest function in admin.php in WP Fastest Cache plugin before 0.8.3.5 for WordPress allow remote attackers to hijack the authentication of unspecified victims for requests that call the (1) saveOption, (2) deleteCache, (3) deleteCssAndJsCache, or (4) addCacheTimeout method via the wpFastestCachePage parameter in the WpFastestCacheOptions/ page

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HIGH

Multiple cross-site request forgery (CSRF) vulnerabilities in the optionsPageRequest function in admin.php in WP Fastest Cache plugin before 0.8.3.5 for WordPress allow remote attackers to hijack the authentication of unspecified victims for requests that call the (1) saveOption, (2) deleteCache, (3) deleteCssAndJsCache, or (4) addCacheTimeout method via the wpFastestCachePage parameter in the WpFastestCacheOptions/ page

Published Sep 19, 2017

8.8

HIGH

CVSS 3.0

EPSS 0.99%

Description

Multiple cross-site request forgery (CSRF) vulnerabilities in the optionsPageRequest function in admin.php in WP Fastest Cache plugin before 0.8.3.5 for WordPress allow remote attackers to hijack the authentication of unspecified victims for requests that call the (1) saveOption, (2) deleteCache, (3) deleteCssAndJsCache, or (4) addCacheTimeout method via the wpFastestCachePage parameter in the WpFastestCacheOptions/ page.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.99% 0.00992

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00992

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (14 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.99% (0.00992)	61.20th	v5 (v2026.06.15)
Jun 15, 2026	0.99% (0.00992)	57.86th	v5 (v2026.06.15)
Mar 30, 2025	0.25% (0.00253)	45.82th	v4 (v2025.03.14)
Mar 29, 2025	8.84% (0.08844)	87.37th	v4 (v2025.03.14)
Mar 24, 2025	0.25% (0.00253)	45.87th	v4 (v2025.03.14)
Mar 23, 2025	2.10% (0.02105)	80.84th	v4 (v2025.03.14)
Mar 17, 2025	0.19% (0.00187)	38.25th	v4 (v2025.03.14)
Dec 12, 2024	0.23% (0.00231)	62.15th	v3 (v2023.03.01)
Jun 20, 2024	0.23% (0.00231)	61.46th	v3 (v2023.03.01)
Mar 7, 2023	0.23% (0.00231)	59.46th	v3 (v2023.03.01)
Mar 6, 2023	1.14% (0.01136)	59.45th	v2 (v2022.01.01)
Oct 18, 2022	1.14% (0.01136)	58.28th	v2 (v2022.01.01)
Apr 1, 2022	1.14% (0.01136)	56.27th	v2 (v2022.01.01)
Feb 4, 2022	1.14% (0.01136)	34.23th	v2 (v2022.01.01)

Weaknesses (1)

CWE-352

CSRF

References (3)

http://www.openwall.com/lists/oss-security/2015/05/26/20
mailing-listx_refsource_MLISTMailing ListThird Party Advisory
https://wordpress.org/plugins/wp-fastest-cache/#developers
x_refsource_CONFIRMThird Party Advisory
https://wpvulndb.com/vulnerabilities/9756
x_refsource_MISC

Link	Providers	Tags
http://www.openwall.com/lists/oss-security/2015/05/26/20		mailing-listx_refsource_MLISTMailing ListThird Party Advisory
https://wordpress.org/plugins/wp-fastest-cache/#developers		x_refsource_CONFIRMThird Party Advisory
https://wpvulndb.com/vulnerabilities/9756		x_refsource_MISC

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Sep 19, 2017

Updated Aug 6, 2024

Reserved May 26, 2015

Link CVE-2015-4089

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-4089

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-4089