Security readout for executives and security teams
Plain-English summary
ClipBucket v5 before 5.5.3 #59 allows a logged-in normal user to save malicious script in a Collection name. The script runs when an administrator views it. Business impact is limited but relevant for sites with untrusted users and active administrators.
Executive priority
Treat as routine but timely maintenance. Prioritize internet-facing or community sites where untrusted users can register and administrators regularly review user-created Collections.
Technical view
This is stored cross-site scripting, CWE-79, in MacWarrior clipbucket-v5 Collection name handling. A low-privileged authenticated user can persist script content that executes in an administrator’s browser context. CVSS v4.0 score is 2.0, with low attack complexity, required privileges, and user interaction by the admin.
Likely exposure
Exposure is limited to ClipBucket v5 deployments earlier than 5.5.3 #59 where normal authenticated users can create or edit Collection names viewed by administrators.
Exploitation context
The source says a normal authenticated user can store the payload and an administrator triggers it. CISA KEV status is false in the provided data. No cited source claims active exploitation in the wild.
Researcher notes
Evidence is limited to the CVE record, GitHub advisory, and fixing commit. The advisory identifies stored XSS in Collection name and the fixed version. Avoid assuming broader ClipBucket versions, other fields, or exploit activity beyond the cited sources.
Mitigation direction
- Upgrade ClipBucket v5 to version 5.5.3 #59 or later.
- Review the linked vendor advisory and commit for exact remediation details.
- Restrict untrusted user access if immediate upgrade is not possible.
- Monitor administrator-facing content for suspicious Collection names until patched.
Validation and detection
- Inventory ClipBucket v5 instances and record installed versions.
- Confirm whether each instance is below 5.5.3 #59.
- Review whether authenticated users can create or edit Collections.
- After updating, verify the deployed version is 5.5.3 #59 or later.
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-2026-26997 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
- Low
- CVSS
- 2 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
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:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
2LowVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/MacWarrior/clipbucket-v5/security/advisories/GHSA-97r6-4hmx-hcrhCVE reference · x_refsource_CONFIRM
- https://github.com/MacWarrior/clipbucket-v5/commit/2da4c8e41f9e4baf47ff89f8a674fbe9b63ac76dCVE 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.