Security readout for executives and security teams
CVE-2021-31721 is a cross-site scripting issue in Chevereto before 3.17.1. A malicious image title entered during upload could cause script execution in another user’s browser. This is most concerning for public or multi-user image-hosting deployments, especially where administrators review uploaded content. Organizations running Chevereto versions earlier than 3.17.1 are potentially exposed, especially if untrusted users can upload images or set titles. Exposure is lower for private, tightly controlled instances. Prioritize remediation for public-facing or multi-user Chevereto sites. This is not shown as actively exploited, but public exploit references increase practical risk. Mitigation focus: Upgrade Chevereto to version 3.17.1 or later.; Check Chevereto vendor guidance for any additional hardening instructions.; Restrict image upload privileges until affected instances are updated..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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ATT&CK lookup starting points
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CVE-2021-31721 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
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Vulnerability timeline
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- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
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ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.exploit-db.com/exploits/49859CVE reference, mitre
Products and packages named in the record
CWE details
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