CVE-2015-5483 — Multiple cross-site request forgery (CSRF) vulnerabilities in the Private Only plugin 3.5.1 for WordPress allow remote attackers to hijack the authentication of administrators for requests that (1) add users, (2) delete posts, or (3) modify PHP files via unspecified vectors, or (4) conduct cross-site scripting (XSS) attacks via the po_logo parameter in the privateonly.php page to wp-admin/options-general.php

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HIGH

Multiple cross-site request forgery (CSRF) vulnerabilities in the Private Only plugin 3.5.1 for WordPress allow remote attackers to hijack the authentication of administrators for requests that (1) add users, (2) delete posts, or (3) modify PHP files via unspecified vectors, or (4) conduct cross-site scripting (XSS) attacks via the po_logo parameter in the privateonly.php page to wp-admin/options-general.php

Published Jan 28, 2020

8.8

HIGH

CVSS 3.1

EPSS 1.58%

Description

Multiple cross-site request forgery (CSRF) vulnerabilities in the Private Only plugin 3.5.1 for WordPress allow remote attackers to hijack the authentication of administrators for requests that (1) add users, (2) delete posts, or (3) modify PHP files via unspecified vectors, or (4) conduct cross-site scripting (XSS) attacks via the po_logo parameter in the privateonly.php page to wp-admin/options-general.php.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.58% 0.01584

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.01584

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 2, 2026	1.58% (0.01584)	74.70th	v5 (v2026.06.15)
Jun 15, 2026	1.58% (0.01584)	72.30th	v5 (v2026.06.15)
Mar 30, 2025	0.33% (0.00333)	53.13th	v4 (v2025.03.14)
Mar 29, 2025	3.99% (0.03987)	80.40th	v4 (v2025.03.14)
Mar 17, 2025	0.33% (0.00333)	54.01th	v4 (v2025.03.14)
Feb 8, 2025	0.47% (0.00473)	75.71th	v3 (v2023.03.01)
Oct 15, 2023	1.62% (0.01624)	86.05th	v3 (v2023.03.01)
Jun 2, 2023	0.76% (0.00759)	78.54th	v3 (v2023.03.01)
Apr 16, 2023	0.63% (0.00629)	75.89th	v3 (v2023.03.01)
Mar 7, 2023	0.89% (0.00891)	80.14th	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://packetstormsecurity.com/files/133349/WordPress-Private-Only-3.5.1-CSRF-Cross-Site-Scripting.html
x_refsource_MISCExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2015/Aug/77
x_refsource_MISCExploitMailing ListThird Party Advisory
https://security.dxw.com/advisories/csrfxss-vulnerability-in-private-only-could-allow-an-attacker-to-do-almost-anything-an-admin-user-can/
x_refsource_MISCExploitThird Party Advisory

Link	Providers	Tags
http://packetstormsecurity.com/files/133349/WordPress-Private-Only-3.5.1-CSRF-Cross-Site-Scripting.html		x_refsource_MISCExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2015/Aug/77		x_refsource_MISCExploitMailing ListThird Party Advisory
https://security.dxw.com/advisories/csrfxss-vulnerability-in-private-only-could-allow-an-attacker-to-do-almost-anything-an-admin-user-can/		x_refsource_MISCExploitThird Party Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Jan 28, 2020

Updated Aug 6, 2024

Reserved Jul 10, 2015

Link CVE-2015-5483

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-5483

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-5483