Security readout for executives and security teams
Plain-English summary
This CVE describes a cross-site scripting issue in the WordPress Goodnews theme. A public search parameter could be reflected unsafely, potentially letting an attacker run script in a visitor’s browser. The sources do not provide CVSS, active exploitation evidence, or a named fixed version.
Executive priority
Treat as a targeted web hygiene issue unless asset inventory shows active use of the old Goodnews theme. Prioritize public WordPress sites because XSS can affect visitors and authenticated users.
Technical view
CVE-2016-10999 is reported as XSS in the Goodnews theme for WordPress through 2016-02-28 via the s parameter. The record lacks CVSS, CWE, precise package identifiers, and remediation details. Exposure depends on whether the affected theme is installed and publicly reachable.
Likely exposure
Likely limited to WordPress sites running the Goodnews theme version available through 2016-02-28. Sites exposing WordPress search functionality are the most relevant candidates for review.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. It only identifies an XSS condition tied to the s parameter in the affected theme.
Researcher notes
Evidence is thin: NVD-style metadata is incomplete, and the source bundle names only the theme, date boundary, XSS class, and s parameter. Do not assume broader WordPress core exposure or active exploitation from these sources.
Mitigation direction
- Inventory WordPress sites for the Goodnews theme and installed release date.
- Check theme vendor or maintainer guidance for a fixed release or replacement.
- Update, disable, or replace affected theme where supported remediation exists.
- Ensure search input is escaped before rendering in theme templates.
- Use tested WAF rules for reflected XSS only as an interim control.
Validation and detection
- Confirm whether Goodnews theme is installed on each WordPress site.
- Determine whether the theme package is from 2016-02-28 or earlier.
- Review search-related templates for unsafe output of the s parameter.
- Use safe test strings to verify search terms are HTML-encoded in responses.
- Confirm remediated pages no longer reflect raw search input.
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-2016-10999 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://www.vulnerability-lab.com/get_content.php?id=1771CVE 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.