Perch CMS 3.2 contains a stored cross-site scripting vulnerability that allows authenticated users to upload malicious SVG files with embedded JavaScript. Attackers can craft SVG files with script tags that execute when the file is viewed, potentially stealing user session information or performing client-side attacks.
CVE-2023-53890
MEDIUMNVD 5.45.4—Elevated
EchelonGraph scoreMEDIUM confidence
Score 5.4 from GitHub Security Advisory published 2025-12-15. NVD baseline CVSS 5.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 5.4(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity54% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 15%
- KEV
- Not listed
Published
December 15, 2025
Last Modified
January 23, 2026
References (4)
- disclosure@vulncheckhttps://grabaperch.com/
- disclosure@vulncheckhttps://www.exploit-db.com/exploits/51621
- disclosure@vulncheckhttps://www.vulncheck.com/advisories/perch-cms-stored-cross-site-scripting-via-svg-file-upload
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.exploit-db.com/exploits/51621
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Frequently asked(5)
What is CVE-2023-53890?
CVE-2023-53890 is a medium vulnerability published on December 15, 2025. Perch CMS 3.2 contains a stored cross-site scripting vulnerability that allows authenticated users to upload malicious SVG files with embedded JavaScript. Attackers can craft SVG files with script tags that execute when the file is viewed, potentially stealing user session information or performing…
When was CVE-2023-53890 disclosed?
CVE-2023-53890 was first published in the National Vulnerability Database on December 15, 2025, with the most recent update on January 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-53890 actively exploited?
CVE-2023-53890 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 85.1% of all scored CVEs.
What is the CVSS score of CVE-2023-53890?
CVE-2023-53890 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2023-53890?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-53890, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-53890
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