Security readout for executives and security teams
Plain-English summary
Simple Behance Portfolio for WordPress has a reflected cross-site scripting flaw in versions up to 0.2. An attacker could craft a link that runs script in a visitor’s browser if the visitor opens it. This is mainly a session, trust, and content-integrity risk for affected WordPress sites.
Executive priority
Treat as a moderate-priority web hygiene issue. It is not known to be actively exploited from the provided sources, but affected public WordPress sites should be remediated during the next patch cycle, sooner for sites used by administrators or customers.
Technical view
CVE-2021-34649 is CWE-79 reflected XSS through the `dark` parameter in `titan-framework/iframe-font-preview.php`. The CVSS 3.1 score is 6.1, with network access, low complexity, no privileges, and required user interaction. Sources identify Simple Behance Portfolio 0.2 and earlier as affected.
Likely exposure
Exposure is likely limited to WordPress sites with Simple Behance Portfolio installed at version 0.2 or earlier. Risk depends on whether the vulnerable plugin file is reachable publicly and whether administrators or users can be induced to open attacker-controlled links.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Because this is reflected XSS, exploitation requires user interaction, typically through a crafted URL. The business impact is lower than server compromise but meaningful for phishing, session abuse, and malicious content injection.
Researcher notes
Evidence identifies the sink location and parameter but does not provide a named fixed version. Avoid assuming patch availability. Focus validation on plugin presence, version, reachable path, and whether any compensating controls block public access to the affected file.
Mitigation direction
- Inventory WordPress sites for Simple Behance Portfolio version 0.2 or earlier.
- Check vendor, WordPress plugin, or Wordfence guidance for a maintained fixed release.
- Disable or remove the plugin if no supported fixed version is available.
- Restrict access to the vulnerable plugin path where operationally feasible.
- Prioritize administrator-facing sites and high-trust public properties first.
Validation and detection
- Confirm whether `simple-behace-portfolio` is installed on each WordPress instance.
- Record the installed plugin version and compare it with the affected range.
- Review web access logs for requests to `titan-framework/iframe-font-preview.php`.
- Verify remediation by confirming the plugin is updated, removed, or otherwise inaccessible.
- Do not validate using live malicious payloads on production users.
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.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-34649 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
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34649CVE reference · x_refsource_MISC
- https://plugins.trac.wordpress.org/browser/simple-behace-portfolio/trunk/titan-framework/iframe-font-preview.php#L141CVE 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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.