CVE-2021-26903
LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].
LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].
- Record
CVE-2021-26903- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].
- Record
CVE-2021-26903- Updated
- 2026-11-02
EUVDEUVD-2021-13687 No score
LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].
- Record
EUVD-2021-13687- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-876v-7v7c-4xcf No score
LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].
LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].
- Record
GHSA-876v-7v7c-4xcf- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Security-AVS/CVE-2021-26903 | 2021-02-24 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26903 is a medium vulnerability (CVSS 6.1) in Isida Retriever, published February 26, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.98%, the 62nd percentile. No source names a fixed version.