CVE-2026-91922 (GCVE-0-2026-91922)
Vulnerability from cvelistv5 – Published: 2026-09-15 11:00 – Updated: 2026-09-15 12:40
VLAI
EPSS
VEX
Title
Steedos Platform through 3.0.15-beta.47 Reflected XSS via page render
Summary
Steedos Platform through 3.0.15-beta.47 contains a reflected cross-site scripting vulnerability in the anonymous /api/page/render endpoint that fails to properly escape query parameters in inline script elements. Attackers can craft malicious links with script-terminating sequences in the schemaApi or data parameters to execute arbitrary JavaScript in victim sessions and steal X-Auth-Token credentials.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 12:39 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/steedos/steedos-platform/issues/8354 | issue-tracking |
| https://github.com/steedos/steedos-platform | product |
| https://github.com/steedos/steedos-platform/blob/… | technical-description |
| https://github.com/steedos/steedos-platform/blob/… | technical-description |
| https://www.vulncheck.com/advisories/steedos-plat… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| steedos | steedos-platform |
Affected:
0 , ≤ 3.0.15-beta.47
(custom)
cpe:2.3:a:steedos:steedos-platform:*:*:*:*:*:*:*:* |
Date Public
2026-08-04 00:00
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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