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6 vulnerabilities found for Really Simple Security by Unknown
CVE-2026-89080 (GCVE-0-2026-89080)
Vulnerability from nvd – Published: 2026-09-13 06:00 – Updated: 2026-09-13 10:44
VLAI
EPSS
VEX
Title
Really Simple Security < 9.8.1 - Unauthenticated 2FA Bypass via Email Provider State Demotion
Summary
The Really Simple Security WordPress plugin before 9.8.1 does not prevent an unauthenticated request from resetting an account's completed email two-factor enrolment, allowing an attacker who already knows the account's password to bypass the second factor and obtain that user's session, up to administrator.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-13 10:41 UTC
CWE
- CWE-287 Improper Authentication
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/49546064-5663-40… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Really Simple Security |
Affected:
9.5.10.1 , < 9.8.1
(semver)
|
{
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
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},
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}
],
"descriptions": [
{
"lang": "en",
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}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Really Simple Security \u003c 9.8.1 - Unauthenticated 2FA Bypass via Email Provider State Demotion",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
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"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-81766 (GCVE-0-2026-81766)
Vulnerability from nvd – Published: 2026-08-30 06:00 – Updated: 2026-08-31 12:38
VLAI
EPSS
VEX
Title
Really Simple Security < 9.8.0 - Multisite Subsite Admin+ Arbitrary Plugin Installation via rsp_upgrade_install_plugin
Summary
The Really Simple Security WordPress plugin before 9.8.0 does not check that the user is allowed to install Really Simple Security WordPress plugin before 9.8.0 before installing one from a user-supplied URL, allowing an administrator of a subsite on a multisite network to install and execute arbitrary code in the network-shared Really Simple Security WordPress plugin before 9.8.0 directory, which WordPress otherwise reserves to the network administrator. Exploitation requires the network administrator to have enabled the Really Simple Security WordPress plugin before 9.8.0 administration menu for subsites, which is not the default.
Severity
6.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 12:30 UTC
CWE
- CWE-269 Improper Privilege Management
- CWE-269 - Improper Privilege Management
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/948d70a2-605e-4a… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Really Simple Security |
Affected:
0 , < 9.8.0
(semver)
|
{
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],
"providerMetadata": {
"dateUpdated": "2026-08-31T12:38:05.969Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"product": "Really Simple Security",
"vendor": "Unknown",
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},
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],
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}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-269 Improper Privilege Management",
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],
"providerMetadata": {
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"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
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},
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}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Really Simple Security \u003c 9.8.0 - Multisite Subsite Admin+ Arbitrary Plugin Installation via rsp_upgrade_install_plugin",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
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"assignerShortName": "WPScan",
"cveId": "CVE-2026-81766",
"datePublished": "2026-08-30T06:00:18.989Z",
"dateReserved": "2026-08-27T12:23:16.066Z",
"dateUpdated": "2026-08-31T12:38:05.969Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8293 (GCVE-0-2026-8293)
Vulnerability from nvd – Published: 2026-06-02 06:00 – Updated: 2026-06-02 10:39
VLAI
EPSS
VEX
Title
Really Simple Security < 9.5.10.1 - Authentication Bypass via Two-Factor OTP Skip
Summary
The Really Simple Security WordPress plugin before 9.5.10.1 does not enforce the second-factor challenge in two of its two-factor authentication REST endpoints, allowing an attacker who knows a user's password to obtain a WordPress authentication session for that user without completing the email OTP challenge.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 10:39 UTC
CWE
- CWE-287 Improper Authentication
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/1de69ef9-6226-42… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Really Simple Security |
Affected:
0 , < 9.5.10.1
(semver)
|
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"integrityImpact": "HIGH",
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"scope": "UNCHANGED",
"userInteraction": "NONE",
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"version": "3.1"
}
},
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"timestamp": "2026-06-02T10:39:12.595658Z",
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"vendor": "Unknown",
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"problemTypes": [
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}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Really Simple Security \u003c 9.5.10.1 - Authentication Bypass via Two-Factor OTP Skip",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
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"dateUpdated": "2026-06-02T10:39:15.547Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-89080 (GCVE-0-2026-89080)
Vulnerability from cvelistv5 – Published: 2026-09-13 06:00 – Updated: 2026-09-13 10:44
VLAI
EPSS
VEX
Title
Really Simple Security < 9.8.1 - Unauthenticated 2FA Bypass via Email Provider State Demotion
Summary
The Really Simple Security WordPress plugin before 9.8.1 does not prevent an unauthenticated request from resetting an account's completed email two-factor enrolment, allowing an attacker who already knows the account's password to bypass the second factor and obtain that user's session, up to administrator.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-13 10:41 UTC
CWE
- CWE-287 Improper Authentication
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/49546064-5663-40… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Really Simple Security |
Affected:
9.5.10.1 , < 9.8.1
(semver)
|
{
"containers": {
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"shortName": "CISA-ADP"
},
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}
],
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"vendor": "Unknown",
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{
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"description": "CWE-287 Improper Authentication",
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"providerMetadata": {
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"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"shortName": "WPScan"
},
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}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Really Simple Security \u003c 9.8.1 - Unauthenticated 2FA Bypass via Email Provider State Demotion",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
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"datePublished": "2026-09-13T06:00:09.950Z",
"dateReserved": "2026-09-10T19:35:57.025Z",
"dateUpdated": "2026-09-13T10:44:06.593Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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}
CVE-2026-81766 (GCVE-0-2026-81766)
Vulnerability from cvelistv5 – Published: 2026-08-30 06:00 – Updated: 2026-08-31 12:38
VLAI
EPSS
VEX
Title
Really Simple Security < 9.8.0 - Multisite Subsite Admin+ Arbitrary Plugin Installation via rsp_upgrade_install_plugin
Summary
The Really Simple Security WordPress plugin before 9.8.0 does not check that the user is allowed to install Really Simple Security WordPress plugin before 9.8.0 before installing one from a user-supplied URL, allowing an administrator of a subsite on a multisite network to install and execute arbitrary code in the network-shared Really Simple Security WordPress plugin before 9.8.0 directory, which WordPress otherwise reserves to the network administrator. Exploitation requires the network administrator to have enabled the Really Simple Security WordPress plugin before 9.8.0 administration menu for subsites, which is not the default.
Severity
6.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 12:30 UTC
CWE
- CWE-269 Improper Privilege Management
- CWE-269 - Improper Privilege Management
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/948d70a2-605e-4a… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Really Simple Security |
Affected:
0 , < 9.8.0
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-81766",
"options": [
{
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},
{
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},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-31T12:30:08.806418Z",
"version": "2.0.3"
},
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}
}
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"description": "CWE-269 Improper Privilege Management",
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}
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}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T12:38:05.969Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"vendor": "Unknown",
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}
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],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Charles Vosburgh"
},
{
"lang": "en",
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CVE-2026-8293 (GCVE-0-2026-8293)
Vulnerability from cvelistv5 – Published: 2026-06-02 06:00 – Updated: 2026-06-02 10:39
VLAI
EPSS
VEX
Title
Really Simple Security < 9.5.10.1 - Authentication Bypass via Two-Factor OTP Skip
Summary
The Really Simple Security WordPress plugin before 9.5.10.1 does not enforce the second-factor challenge in two of its two-factor authentication REST endpoints, allowing an attacker who knows a user's password to obtain a WordPress authentication session for that user without completing the email OTP challenge.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 10:39 UTC
CWE
- CWE-287 Improper Authentication
- CWE-287 - Improper Authentication
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/1de69ef9-6226-42… | exploitvdb-entrytechnical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Really Simple Security |
Affected:
0 , < 9.5.10.1
(semver)
|
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