SiteGround Security <= 1.2.5 - Authentication Bypass via 2FA Setup
Published Apr 19, 2022
9.8
CRITICALCVSS 3.1
EPSS 2.94%
Description
The SiteGround Security plugin for WordPress is vulnerable to authentication bypass that allows unauthenticated users to log in as administrative users due to missing identity verification on initial 2FA set-up that allows unauthenticated and unauthorized users to configure 2FA for pending accounts. Upon successful configuration, the attacker is logged in as that user without access to a username/password pair which is the expected first form of authentication. This affects versions up to, and including, 1.2.5.
Affected products
-
- Version 0StatusaffectedConstraints<=1.2.5
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Siteground | Security Optimizer – The All-In-One Protection Plugin | unaffected |
|
- < 1.2.6
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Apr 23, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
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 (23 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 2.94% (0.02943) | 86.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.88% (0.02878) | 84.97th | v5 (v2026.06.15) |
| Apr 28, 2025 | 4.37% (0.04367) | 88.28th | v4 (v2025.03.14) |
| Mar 30, 2025 | 0.36% (0.00361) | 55.34th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.03% (0.04034) | 80.51th | v4 (v2025.03.14) |
| Mar 24, 2025 | 0.36% (0.00361) | 55.43th | v4 (v2025.03.14) |
| Mar 23, 2025 | 4.03% (0.04034) | 86.35th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.36% (0.00355) | 55.64th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.41% (0.00410) | 74.71th | v3 (v2023.03.01) |
| Jul 11, 2024 | 0.42% (0.00418) | 74.31th | v3 (v2023.03.01) |
| Feb 10, 2024 | 0.49% (0.00494) | 75.49th | v3 (v2023.03.01) |
| Dec 9, 2023 | 0.49% (0.00494) | 73.49th | v3 (v2023.03.01) |
| Nov 25, 2023 | 0.35% (0.00348) | 68.65th | v3 (v2023.03.01) |
| Oct 25, 2023 | 0.24% (0.00245) | 62.24th | v3 (v2023.03.01) |
| Oct 21, 2023 | 0.21% (0.00210) | 58.66th | v3 (v2023.03.01) |
| Sep 30, 2023 | 0.32% (0.00324) | 67.23th | v3 (v2023.03.01) |
| May 22, 2023 | 0.29% (0.00295) | 64.72th | v3 (v2023.03.01) |
| Apr 26, 2023 | 0.26% (0.00263) | 62.46th | v3 (v2023.03.01) |
| Mar 20, 2023 | 0.17% (0.00165) | 51.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00156) | 50.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Oct 8, 2022 | 0.89% (0.00885) | 26.51th | v2 (v2022.01.01) |
| Apr 20, 2022 | 0.89% (0.00885) | 24.50th | v2 (v2022.01.01) |
References (3)
- https://plugins.trac.wordpress.org/changeset/2706302 Release NotesVendor Advisory
- https://www.wordfence.com/blog/2022/04/critical-authentication-bypass-vulnerability-patched-in-siteground-security-plugin/ ExploitThird Party Advisory
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6e5c6bf7-a653-4571-9566-574d2bb35c4f?source=cve Third Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://plugins.trac.wordpress.org/changeset/2706302 | Release NotesVendor Advisory | |
| https://www.wordfence.com/blog/2022/04/critical-authentication-bypass-vulnerability-patched-in-siteground-security-plugin/ | ExploitThird Party Advisory | |
| https://www.wordfence.com/threat-intel/vulnerabilities/id/6e5c6bf7-a653-4571-9566-574d2bb35c4f?source=cve | Third Party Advisory |
Change history (0)
No recorded changes yet.