Security readout for executives and security teams
Plain-English summary
CVE-2021-30170 is a stored cross-site scripting flaw in Jun-He Technology ERP POS customer profile handling. An authenticated attacker could save malicious JavaScript that later runs when another user views the affected profile, potentially exposing or changing customer information.
Executive priority
Treat this as a targeted data integrity and customer information risk, not an internet-wide emergency. Prioritize if ERP POS is in active use, customer records are sensitive, or many authenticated users can edit profiles.
Technical view
The issue is CWE-79 in ERP POS version 2013.10. User-supplied special characters on the customer profile page are not properly filtered. CVSS 3.1 is 4.6: network reachable, low complexity, low privileges required, user interaction required, with limited confidentiality and integrity impact.
Likely exposure
Exposure is limited to organizations running Jun-He Technology Ltd. ERP POS 2013.10. Risk is higher where many staff accounts can edit customer profiles or where the POS interface is reachable beyond tightly managed internal networks.
Exploitation context
The sources describe remote authenticated stored XSS. They do not state public exploit availability or active exploitation, and the CVE is not listed as KEV in the provided bundle.
Researcher notes
Public evidence is brief. The advisory identifies stored XSS on the customer profile page but does not name a patch, workaround, exploit, or deeper version range beyond ERP POS 2013.10.
Mitigation direction
- Identify whether Jun-He ERP POS 2013.10 is deployed.
- Check Jun-He or TWCERT guidance for a fixed version or vendor workaround.
- Restrict ERP POS access to trusted networks and necessary users.
- Review permissions for customer profile editing.
- Sanitize existing customer profile records after remediation guidance is confirmed.
Validation and detection
- Inventory ERP POS versions and confirm any 2013.10 installations.
- Review customer profile fields for unsafe stored markup or script-like content.
- Check audit logs for unusual customer profile changes by authenticated users.
- Verify that profile rendering encodes user-controlled special characters.
- Confirm vendor remediation status against TWCERT and CVE records.
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-2021-30170 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
- 4.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/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.
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:U/C:L/I:L/A:N2.12.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.6MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.twcert.org.tw/tw/cp-132-4707-9c87e-1.htmlCVE reference · x_refsource_MISC
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.