WordPress Core <= 7.0.2 - Authenticated (Subscriber+) Missing Authorization to Arbitrary Site Creation on Multisite
WordPress Core is vulnerable to unauthorized site creation due to a missing check on the active signup policy in the 'gimmeanotherblog' signup action in all versions up to, and including, 7.0.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create new sites on a multisite network that has been configured to allow user registration but not site registration. This issue only affects multisite installations.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress (core) | WordPress | >= 4.7.0, <= 4.7.33, >= 4.8.0, <= 4.8.28, >= 4.9.0, <= 4.9.29, >= 5.0.0, <= 5.0.25, >= 5.1.0, <= 5.1.22, >= 5.2.0, <= 5.2.24, >= 5.3.0, <= 5.3.21, >= 5.4.0, <= 5.4.19, >= 5.5.0, <= 5.5.18, >= 5.6.0, <= 5.6.17, >= 5.7.0, <= 5.7.15, >= 5.8.0, <= 5.8.13, >= 5.9.0, <= 5.9.13, >= 6.0.0, <= 6.0.12, >= 6.1.0, <= 6.1.10, >= 6.2.0, <= 6.2.9, >= 6.3.0, <= 6.3.8, >= 6.4.0, <= 6.4.8, >= 6.5.0, <= 6.5.8, >= 6.6.0, <= 6.6.5, >= 6.7.0, <= 6.7.5, >= 6.8.0, <= 6.8.6, >= 6.9.0, <= 6.9.5, >= 7.0.0, <= 7.0.2 | 4.7.34, 4.8.29, 4.9.30, 5.0.26, 5.1.23, 5.2.25, 5.3.22, 5.4.20, 5.5.19, 5.6.18, 5.7.16, 5.8.14, 5.9.14, 6.0.13, 6.1.11, 6.2.10, 6.3.9, 6.4.9, 6.5.9, 6.6.6, 6.7.6, 6.8.7, 6.9.6, 7.0.3 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-862- Platform
- WordPress
- Package
WordPress- Disclosed
- 08.08.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 80f92f7f-72e7-4d83-9ceb-ed0e11fb8003 - Wordfence Intelligence
Copyright 2012-2026 Defiant Inc.
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Vulnerability history: WordPress
All published vulnerabilities of this package (WordPress (core)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 385
- First → latest
- 06.2003 10.2026
- Without a fix
- 0
- Exploited in attacks
- 3
Severity breakdown
- Critical 16
- High 95
- Medium 263
- Low 11
Disclosures per year
- 2017: 39
- 2018: 15
- 2019: 22
- 2020: 23
- 2021: 5
- 2022: 20
- 2023: 14
- 2024: 4
- 2025: 2
- 2026: 36
earlier: 205
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WordPress Core <= 7.0.2 - Authenticated (Subscriber+) Missing Authorization to Arbitrary Site Creation on Multisite this entry
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