Cross-site scripting in MonicaHQ
Priority LOW 27CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
MonicaHQ version 4.0.0 allows an authenticated remote attacker to execute malicious code in the application via CSTI in the `people:id/introductions` endpoint and first_met_additional_info parameter.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00643 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | MonicaHQ | 4.0.0 | — | No fix listed | CNA |
- MonicaHQ Vendor— Affected 4.0.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-30787
- 2026-10-03 Alias added: GHSA-6jxh-gmwr-m73p
- 2026-10-21 EPSS moved to the 50th–90th percentile
References
Advisory 1
More Monicahq Monica vulnerabilities
- TI-2026-21384 A Host Header Poisoning vulnerability exists in Monica 4.1.2 due to improper handling of… CVSS 3.1CRITICAL 9.1
- TI-2024-36734 MonicaHQ v4.1.2 was discovered to contain multiple authenticated Client-Side Injection… CVSS 3.1HIGH 8.8
- TI-2023-00976 Cross-site scripting in MonicaHQ CVSS 3.1HIGH 8.8
- TI-2024-36737 MonicaHQ v4.1.2 was discovered to contain a Client-Side Injection vulnerability via the… CVSS 3.1MEDIUM 6.5
- TI-2024-36733 MonicaHQ v4.1.2 was discovered to contain multiple Client-Side Injection vulnerabilities… CVSS 3.1MEDIUM 6.5
- TI-2024-36736 MonicaHQ v4.1.2 was discovered to contain an authenticated Client-Side Injection… CVSS 3.1MEDIUM 5.4
Sources
- CVE-2023-30787 · CVE Program
- CVE-2023-30787 · NVD
- FIRST EPSS
- GHSA-6jxh-gmwr-m73p · GitHub Advisory Database · CC BY 4.0
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