Security readout for executives and security teams
Plain-English summary
CVE-2011-3855 is a cross-site scripting flaw in the F8 Lite WordPress theme before version 4.2.2. A malicious web input could cause browser-executed script or HTML. Business risk is highest for public WordPress sites still running this old theme, especially where trusted users or customers visit affected pages.
Executive priority
Treat as a legacy web exposure cleanup item, not an emergency based on the provided evidence. Prioritize any internet-facing WordPress site still using the affected theme, because XSS can harm visitors and undermine trust even without server compromise.
Technical view
The source describes reflected XSS in the WordPress F8 Lite theme before 4.2.2 through the s parameter. No CVSS, CWE, or detailed affected CPE data is provided. The practical technical concern is unsafe handling of user-controlled search input that may be rendered into HTML without adequate encoding.
Likely exposure
Exposure is likely limited to WordPress sites using the F8 Lite theme earlier than 4.2.2. The bundle does not identify other affected products or platforms. Because this is a 2011 issue, current exposure depends on legacy theme inventory and abandoned WordPress installations.
Exploitation context
The provided sources do not state active exploitation, and the CVE is not marked KEV. The issue is remotely reachable where the vulnerable theme exposes the affected search parameter. Evidence is insufficient to claim exploit prevalence, weaponization, or real-world targeting.
Researcher notes
Source detail is sparse: no CVSS vector, CWE mapping, CPEs, or exploit-status evidence are supplied. Analysis should remain scoped to F8 Lite before 4.2.2 and the s parameter. Validate with theme version evidence and vendor advisory content before broadening impact claims.
Mitigation direction
- Upgrade F8 Lite to version 4.2.2 or later where available.
- Replace the theme if it is unsupported or cannot be verified fixed.
- Review vendor advisory details before relying on compensating controls.
- Prioritize remediation on public WordPress sites and authenticated user portals.
Validation and detection
- Inventory WordPress sites for the F8 Lite theme and installed version.
- Confirm no active deployment runs F8 Lite before 4.2.2.
- Review web logs for suspicious values submitted to the s parameter.
- Verify remediated pages safely encode search input in rendered HTML.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2011-3855 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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/13CVE 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.