Security readout for executives and security teams
Plain-English summary
Arunna 1.0.0 has a CSRF flaw that can let an attacker change a logged-in user’s profile settings if the user is induced to submit attacker-controlled content. Reported impacts include changing passwords, email addresses, and administrative privileges. This matters most where Arunna is exposed to users with elevated access.
Executive priority
Prioritize if Arunna 1.0.0 is used for administration or exposed to untrusted users. The business risk is unauthorized account or privilege changes, not direct server takeover based on the provided sources. If Arunna is not deployed, no action is needed beyond confirming absence.
Technical view
CVE-2021-47754 is CWE-352 in Arunna 1.0.0. The public description says profile-setting changes lack adequate CSRF protection, enabling unauthorized state changes through a crafted form. The source text inconsistently says “without authentication” while also requiring a tricked authenticated user; treat this as an authenticated-session CSRF risk unless vendor guidance clarifies otherwise.
Likely exposure
Exposure appears limited to organizations running Arunna 1.0.0, especially internet-accessible or multi-user instances where profile and privilege changes are available through the web interface. The source bundle does not identify other affected versions, hosted services, or downstream products.
Exploitation context
A public ExploitDB entry and archived researcher write-up exist, so technical details are public. The source bundle does not show CISA KEV listing or confirmed active exploitation. CSRF generally depends on a victim having an active session and interacting with attacker-controlled content.
Researcher notes
Patch status is unclear in the provided sources. The CVE record is dated 2026 despite the 2021 identifier and 2021 researcher references. Public exploit references exist, but this answer does not rely on or reproduce weaponization details. Validate assumptions against the CVE record, ExploitDB entry, archived blog, and repository.
Mitigation direction
- Identify any Arunna deployments and confirm whether version 1.0.0 is in use.
- Check the Arunna repository and vendor channels for maintained fixes or migration guidance.
- Restrict access to Arunna administrative functions until remediation is confirmed.
- If maintaining the code, evaluate standard CSRF protections for profile-changing requests.
- Require reauthentication or additional approval for password, email, and privilege changes where feasible.
Validation and detection
- Inventory Arunna instances and record exposed URLs, owners, and versions.
- Review profile-change requests for anti-CSRF tokens and server-side validation.
- Confirm whether privilege-changing actions require authorization beyond a submitted form.
- Test only in an authorized staging environment using safe, non-production accounts.
- Monitor logs for unexpected profile, password, email, or role changes.
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-352: 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-2021-47754 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
- 6.9 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.9MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-50608CVE reference · exploit
- Archived Researcher BlogCVE reference · exploit, technical-description
- Arunna GitHub RepositoryCVE reference · product
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.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.