CVE-2021-24219
High PUBLISHEDAll Thrive Themes and Plugins - Unauthenticated Option Update
Not yet in CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
The Thrive Optimize WordPress plugin before 1.4.13.3, Thrive Comments WordPress plugin before 1.4.15.3, Thrive Headline Optimizer WordPress plugin before 1.3.7.3, Thrive Leads WordPress plugin before 2.3.9.4, Thrive Ultimatum WordPress plugin before 2.3.9.4, Thrive Quiz Builder WordPress plugin before 2.3.9.4, Thrive Apprentice WordPress plugin before 2.3.9.4, Thrive Visual Editor WordPress plugin before 2.6.7.4, Thrive Dashboard WordPress plugin before 2.3.9.3, Thrive Ovation WordPress plugin before 2.4.5, Thrive Clever Widgets WordPress plugin before 1.57.1 and Rise by Thrive Themes WordPress theme before 2.0.0, Ignition by Thrive Themes WordPress theme before 2.0.0, Luxe by Thrive Themes WordPress theme before 2.0.0, FocusBlog by Thrive Themes WordPress theme before 2.0.0, Minus by Thrive Themes WordPress theme before 2.0.0, Squared by Thrive Themes WordPress theme before 2.0.0, Voice WordPress theme before 2.0.0, Performag by Thrive Themes WordPress theme before 2.0.0, Pressive by Thrive Themes WordPress theme before 2.0.0, Storied by Thrive Themes WordPress theme before 2.0.0, Thrive Themes Builder WordPress theme before 2.2.4 register a REST API endpoint associated with Zapier functionality. While this endpoint was intended to require an API key in order to access, it was possible to access it by supplying an empty api_key parameter in vulnerable versions if Zapier was not enabled. Attackers could use this endpoint to add arbitrary data to a predefined option in the wp_options table.
- CVE Published
- Apr 12, 2021
- Exploitation Reported
- Mar 24, 2021
- CVSS
- 5.3 Medium
- EPSS
- 0.2%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Thrive Themes |
Thrive Optimize
|
1.4.13.3 to < 1.4.13.3 |
Affected |
| Thrive Themes |
Thrive Comments
|
1.4.15.3 to < 1.4.15.3 |
Affected |
| Thrive Themes |
Thrive Headline Optimizer
|
1.3.7.3 to < 1.3.7.3 |
Affected |
| Thrive Themes |
Thrive Leads
|
2.3.9.4 to < 2.3.9.4 |
Affected |
| Thrive Themes |
Thrive Ultimatum
|
2.3.9.4 to < 2.3.9.4 |
Affected |
| Thrive Themes |
Thrive Quiz Builder
|
2.3.9.4 to < 2.3.9.4 |
Affected |
| Thrive Themes |
Thrive Apprentice
|
2.3.9.4 to < 2.3.9.4 |
Affected |
| Thrive Themes |
Thrive Visual Editor
|
2.6.7.4 to < 2.6.7.4 |
Affected |
| Thrive Themes |
Thrive Dashboard
|
2.3.9.3 to < 2.3.9.3 |
Affected |
| Thrive Themes |
Thrive Ovation
|
2.4.5 to < 2.4.5 |
Affected |
| Thrive Themes |
Thrive Clever Widgets
|
1.57.1 to < 1.57.1 |
Affected |
| Thrive Themes |
Rise by Thrive Themes
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
Ignition by Thrive Themes
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
Luxe by Thrive Themes
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
FocusBlog by Thrive Themes
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
Minus by Thrive Themes
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
Squared by Thrive Themes
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
Voice
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
Performag by Thrive Themes
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
Pressive by Thrive Themes
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
Storied by Thrive Themes
|
2.0.0 to < 2.0.0 |
Affected |
| Thrive Themes |
Thrive Themes Builder
|
2.2.4 to < 2.2.4 |
Affected |
CVE References
- wpscan.com/vulnerability/35acd2d8-85fc-4af5-8f6c-224fa7... wpscan.com · CVE Record https://wpscan.com/vulnerability/35acd2d8-85fc-4af5-8f6c-224fa7d92900
- wordfence.com/blog/2021/03/recently-patched-vulnerability-... wordfence.com · CVE Record https://www.wordfence.com/blog/2021/03/recently-patched-vulnerability...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| Wordfence First | 2021-03-24 10:36 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24219.yaml | Jun 01, 2026 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
AV:N/AC:L/Au:N/C:N/I:P/A:N
Exploitation Status
Exploited in the wild
Recorded 2021-03-24 10:36:04 UTC · Wordfence
Proof of concept available
Recorded 2026-06-12 14:20:56 UTC · Nuclei Templates
Weaknesses (CWE)
-
Improper Access Control
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24219.yaml | Jun 01, 2026 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
nuclei · Created Unknown
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
14:20 UTC about 1 month ago14:20 UTC · about 1 month ago
Public PoC available
Public proof-of-concept code published
-
15:34 UTC about 2 months ago15:34 UTC · about 2 months ago
Nuclei template available
Scanner coverage available
-
14:02 UTC over 5 years ago14:02 UTC · over 5 years ago
CVE published
Vulnerability disclosed publicly
-
10:36 UTC over 5 years ago10:36 UTC · over 5 years ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
00:00 UTC over 5 years ago00:00 UTC · over 5 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2021-24219
{
"cve_id": "CVE-2021-24219",
"title": "All Thrive Themes and Plugins - Unauthenticated Option Update",
"affected_vendor": "Thrive Themes",
"affected_product": "Thrive Optimize, Thrive Comments, Thrive Headline Optimizer, Thrive Leads, Thrive Ultimatum, Thrive Quiz Builder, Thrive Apprentice, Thrive Visual Editor, Thrive Dashboard, Thrive Ovation, Thrive Clever Widgets, Rise by Thrive Themes, Ignition by Thrive Themes, Luxe by Thrive Themes, FocusBlog by Thrive Themes, Minus by Thrive Themes, Squared by Thrive Themes, Voice, Performag by Thrive Themes, Pressive by Thrive Themes, Storied by Thrive Themes, Thrive Themes Builder",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "High",
"cvss_score": 5.3,
"epss_score": 0.00178,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}