Security readout for executives and security teams
Plain-English summary
An authenticated user of DDSN Interactive Acora CMS v10.7.1 can plant malicious code inside the First Name and Last Name fields when adding a user. The code runs later in another user's browser, which can hijack sessions, steal data, or trick staff into taking actions. Impact is limited to the CMS and its users, not the underlying server.
Executive priority
Treat as a moderate, scheduled fix rather than an emergency. Impact is confined to CMS users and content integrity, but a public PoC and stored persistence mean a compromised low-privilege account could target administrators. Prioritize confirming exposure with the web team and engaging the vendor within the normal patch cycle.
Technical view
Multiple stored XSS flaws exist in the submit_add_user.asp endpoint of Acora CMS 10.7.1. Input to the First Name and Last Name parameters is stored without sufficient encoding and later rendered in the CMS UI, allowing arbitrary HTML or script execution (CWE-79). CVSS 3.1 5.4 (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) reflects authenticated, user-interaction-required exploitation with scope change.
Likely exposure
Exposure is limited to organizations running DDSN Interactive Acora CMS 10.7.1 with the affected admin user-management page reachable by authenticated users. The bundle does not list specific deployment counts or public-facing instances, and the vendor/product field in NVD is "n/a," so scope beyond confirmed Acora CMS 10.7.1 tenants is uncertain.
Exploitation context
Not listed in CISA KEV and no evidence of active exploitation is cited. A public proof-of-concept repository exists on GitHub (padayali-JD/CVE-2026-29598), which lowers the barrier for opportunistic testing. Exploitation requires a low-privileged authenticated account plus a victim viewing the poisoned record, per the CVSS vector.
Researcher notes
CWE-79 stored XSS with scope change (S:C) suggests the injected content affects a security context beyond the vulnerable component, consistent with admin UI rendering. NVD lists vendor/product as "n/a" and no CPEs, so asset matching must rely on manual identification of Acora CMS 10.7.1. The linked GitHub repository is the primary technical artifact; treat it as researcher PoC, not vendor guidance.
Mitigation direction
- Inventory Acora CMS instances and confirm whether version 10.7.1 or earlier is deployed.
- Check DDSN Interactive vendor guidance for a patched release or hotfix for submit_add_user.asp.
- Restrict access to the user-management endpoint to trusted admin networks or VPN.
- Tighten CMS role permissions so untrusted users cannot create or edit user records.
- Deploy a WAF rule to block script-like payloads in First Name and Last Name fields.
- Review CMS accounts for suspicious names containing HTML or script markup.
Validation and detection
- Confirm Acora CMS build number and whether submit_add_user.asp is present.
- In a staging copy, verify that name fields are properly HTML-encoded when rendered in admin views.
- Search CMS user tables for stored payload indicators such as angle brackets or script keywords.
- Review web server and CMS audit logs for POSTs to submit_add_user.asp from unexpected accounts.
- Track vendor advisories and the referenced GitHub PoC for status changes or patch notes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-29598 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N2.32.7CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/padayali-JD/CVE-2026-29598CVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.