Security readout for executives and security teams
Plain-English summary
CVE-2011-3863 is an XSS flaw in the RedLine WordPress theme before version 1.66. A public website using the vulnerable theme could let an attacker inject script or HTML through the search parameter, potentially affecting visitors or administrators who view crafted content.
Executive priority
Treat this as a focused web exposure cleanup item. It is not supported as actively exploited here, but public WordPress XSS can affect brand trust, users, and administrator sessions if a vulnerable theme remains deployed.
Technical view
The source describes cross-site scripting in the RedLine theme for WordPress before 1.66 via the s parameter. No CVSS, CWE, vendor CPE, or detailed advisory content is provided in the bundle. The issue appears limited to sites running that theme and version range.
Likely exposure
Exposure is likely limited to WordPress installations using the RedLine theme earlier than 1.66, especially public sites with search functionality reachable by unauthenticated users.
Exploitation context
The bundle states remote attackers can inject arbitrary web script or HTML. It does not cite active exploitation, and the CVE is not listed as KEV in the provided data.
Researcher notes
Evidence is sparse: the CVE description names RedLine before 1.66 and the s parameter, but no CVSS, CWE, CPE, or exploit telemetry is included. Avoid broad WordPress assumptions beyond the named theme and version boundary.
Mitigation direction
- Upgrade the RedLine WordPress theme to version 1.66 or later.
- If upgrade is not possible, remove or disable the vulnerable theme.
- Check vendor or theme maintainer guidance for any additional fixes.
- Restrict administrative browsing of untrusted links until remediation is complete.
Validation and detection
- Inventory WordPress sites for RedLine theme usage and installed version.
- Confirm no production site runs RedLine earlier than 1.66.
- Review web logs for suspicious script-like input in the s parameter.
- In a safe test environment, verify search input is properly encoded in responses.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2011-3863 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://sitewat.ch/en/Advisories/22CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.