Apostrophe Vulnerable to Stored Cross-Site Scripting via Unsanitized User Display Name in Draft Version Tooltip
Published Jun 12, 2026
5.3
MEDIUMCVSS 4.0
EPSS 0.44%
Description
ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 are vulnerable to stored cross-site scripting via unsanitized user display name in draft version tooltip. As of time of publication, no known patched versions are available.
Affected products
-
- Version <= 4.29.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apostrophecms | Apostrophe | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jun 15, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Jun–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.44% (0.00444) | 36.36th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.29% (0.00286) | 20.11th | v5 (v2026.06.15) |
| Jun 13, 2026 | 0.05% (0.00047) | 15.15th | v4 (v2025.03.14) |
References (1)
- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-hvx2-4ghc-j37m x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-hvx2-4ghc-j37m | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.