Security readout for executives and security teams
Plain-English summary
CVE-2021-36832 is a stored cross-site scripting flaw in the WordPress Icegram plugin through version 2.0.2. A privileged authenticated user could store unsafe content in the Headline field, which may run in another user's browser when viewed.
Executive priority
Treat as a moderate-priority WordPress plugin issue. It is not identified as actively exploited in the provided evidence, but affected sites should be remediated during normal security maintenance because stored XSS can affect trusted administrator workflows.
Technical view
The issue is CWE-79 in Icegram's Headline input, identified as message_data[16][headline]. CVSS 3.1 is 4.8, with network access, low attack complexity, high privileges required, user interaction required, changed scope, and limited confidentiality and integrity impact.
Likely exposure
Exposure is limited to WordPress sites running Icegram versions 2.0.2 or earlier, especially where multiple privileged users can create or edit Icegram messages, popups, bars, opt-ins, or lead-generation content.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires authenticated high privileges and another user interacting with affected stored content, reducing broad internet-scale urgency but still relevant for administrator-session risk.
Researcher notes
Focus validation on authenticated content-editing paths for Icegram Headline data. The bundle identifies the vulnerable parameter and affected version boundary, but does not provide exploit evidence or a named fixed version, so remediation should follow vendor guidance.
Mitigation direction
- Inventory WordPress sites for the Icegram plugin and recorded versions.
- Prioritize remediation for Icegram versions 2.0.2 or earlier.
- Check WordPress and Patchstack vendor guidance for the fixed or recommended release.
- Disable or remove vulnerable Icegram deployments if no approved update is available.
- Limit plugin content-editing rights to trusted administrators only.
- Review plugin-created Headline content for unexpected script-like markup.
Validation and detection
- Confirm whether Icegram is installed on each WordPress property.
- Record the installed Icegram version and compare it with <= 2.0.2.
- Identify users or roles allowed to edit Icegram content.
- Review affected Headline fields for suspicious stored HTML or script-like content.
- After remediation, verify the site no longer runs an affected version.
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-2021-36832 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
- 4.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/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:H/UI:R/S:C/C:L/I:L/A:N1.72.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.8MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://wordpress.org/plugins/icegram/#developersCVE reference · x_refsource_CONFIRM
- https://patchstack.com/database/vulnerability/icegram/wordpress-icegram-plugin-2-0-2-authenticated-stored-cross-site-scripting-xss-vulnerabilityCVE 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.