larsdrasmussen rexCrawler Plugin up to 1.0.15 on WordPress url/regex cross site scripting
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.1 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as problematic has been found in larsdrasmussen rexCrawler Plugin up to 1.0.15 on WordPress. Affected is an unknown function. Such manipulation of the argument url/regex leads to cross site scripting. This vulnerability is listed as CVE-2026-2277. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.
Details
A vulnerability, which was classified as problematic, has been found in larsdrasmussen rexCrawler Plugin up to 1.0.15 on WordPress. Affected by this issue is an unknown part. The manipulation of the argument url/regex with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:
The rexCrawler plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'url' and 'regex' parameters in the search-pattern tester page in all versions up to, and including, 1.0.15 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick an administrator into performing an action such as clicking on a link. This only affects multi-site installations and installations where unfiltered_html has been disabled.
The weakness was presented by san6051. The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-2277 since 02/10/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.
Upgrading to version 1.0.15 eliminates this vulnerability.
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Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.2VulDB Meta Temp Score: 5.1
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 6.1
CNA Vector (Wordfence): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: rexCrawler Plugin 1.0.15
Timeline
02/10/2026 CVE reserved03/21/2026 Advisory disclosed
03/21/2026 VulDB entry created
03/21/2026 VulDB entry last update
Sources
Advisory: wordfence.comResearcher: san6051
Status: Confirmed
CVE: CVE-2026-2277 (🔒)
GCVE (CVE): GCVE-0-2026-2277
GCVE (VulDB): GCVE-100-352208
Entry
Created: 03/21/2026 07:30Changes: 03/21/2026 07:30 (67)
Complete: 🔍
Cache ID: 216::103
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