Security readout for executives and security teams
Plain-English summary
ElkarBackup 1.3.3 has a reported cross-site scripting issue in the add-client name field. If reachable by an attacker, malicious input could run in another user's browser, potentially affecting backup administration sessions. The sources do not provide CVSS, CWE, patch, or authentication details.
Executive priority
Treat this as a focused application-risk item, not a broad emergency. Prioritize if ElkarBackup administers critical backups or is accessible outside a tightly controlled admin network.
Technical view
CVE-2020-35249 describes XSS in ElkarBackup 1.3.3 through the name parameter in the add client feature. The public record references an Exploit-DB entry, but the provided sources do not establish active exploitation, vulnerable code paths beyond that parameter, or an official fixed version.
Likely exposure
Exposure is likely limited to organizations running ElkarBackup 1.3.3 where the web administration interface or add-client workflow is reachable by untrusted users. The CVE metadata lists affected vendor and product as n/a, so inventory validation is required.
Exploitation context
A public Exploit-DB reference exists, indicating public exploit information. CISA KEV is false in the source bundle, and no cited source states active exploitation in the wild.
Researcher notes
The source bundle is sparse: no CVSS vector, CWE, vendor advisory, patch reference, or authentication preconditions. Analysis should stay tied to XSS via the add-client name parameter and the existence of public Exploit-DB material.
Mitigation direction
- Check ElkarBackup vendor or project guidance for a fixed release.
- Upgrade away from ElkarBackup 1.3.3 if a maintained fixed version exists.
- Restrict ElkarBackup admin access to trusted networks and users.
- Limit add-client permissions to administrators who need them.
- Apply input validation and output encoding if maintaining a private fork.
Validation and detection
- Inventory ElkarBackup deployments and confirm whether version 1.3.3 is present.
- Verify who can access the add-client workflow.
- Review application logs for suspicious add-client name values.
- Check whether any unexpected clients or admin-session activity appeared.
- Confirm compensating network restrictions are active for the admin interface.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-35249 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.exploit-db.com/exploits/48756CVE 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.