01 Record
CVE-2026-11422
Markdown Preview Enhanced 0.8.x Code Injection via WaveDrom Rendering
HighPUBLISHEDCNA: VulnCheck
CNA base score8.4 CVSS v4.0CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
02 Description
Markdown Preview Enhanced 0.8.x Code Injection via WaveDrom Rendering
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.15% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 4.9% of scored records. A rank, not a probability.
- NVD base score
- 8.4 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/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
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-07-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-06-05 20:16Z4 MO AGO
- Last updated
- 2026-07-14 15:53Z3 MO AGO
- Reserved
- 2026-06-05
- Assigning CNA
- VulnCheck
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.4)
- CNA CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')Variant
- Data version
- 5.2
- Document digest
- c62d7df7090dbd2687d7ab10054890bb7870ca744959dc530e8a22379cbf5056
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/shd101wyy/vscode-markdown-preview-enhanced/issues/2315
- github.comhttps://github.com/shd101wyy/crossnote/commit/5588ca2121c3da43fe331575dc5cf4ef347b91ee
- github.comhttps://github.com/shd101wyy/vscode-markdown-preview-enhanced/commit/dcd80281c986293b93d9f1af34ced64dcb230c77
- www.vulncheck.comhttps://www.vulncheck.com/advisories/markdown-preview-enhanced-x-code-injection-via-wavedrom-rendering