CVE-2025-24023: dpgaspar flask-appbuilder Observable Response Discrepancy
CVSS: 5.3v3.1MediumAnalyzed
AliasesGHSA-p8q5-cvwx-wvwpPYSEC-2025-15CGA-qq2j-hm7j-wmccCGA-v5pv-g477-qq2f
Published 03-03-2025Last modified 03-03-2025
Vulnerability summary
CVE-2025-24023 is a medium (CVSS 5.3) Observable Response Discrepancy vulnerability in dpgaspar flask-appbuilder. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.9% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (NVD)EPSS score
0.33%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 0 · Related 2Timeline
- 03-03-2025PublishedVulnerability first disclosed.
- 03-03-2025Last modifiedVulnerability information updated.
Description
Flask-AppBuilder is an application development framework. Prior to 4.5.3, Flask-AppBuilder allows unauthenticated users to enumerate existing usernames by timing the response time from the server when brute forcing requests to login. This vulnerability is fixed in 4.5.3.
CVSS metrics
5 scores · 5 sources · 1 versionMedium 5.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NSources5 sources · 3.7–5.3
- CVE.orgCNA3.7LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:NDiffers
- OSV · PypiEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · WolfiEcosystem advisory · calculated3.7LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:NDiffers
- OSV · ChainguardEcosystem advisory · calculated3.7LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:NDiffers
EPSS trend
Probability
0.33%
Chance of exploitation in the next 30 days
Percentile
25%
Versus all other CVEs
30-day change
+0.01 pp
From 0.33% on 19-09-2026
19-09-202619-10-2026
EPSS score0.33%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-204Observable Response DiscrepancyThe product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.
- CWE-203Observable DiscrepancyThe product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.
Affected systems
Chainguard1 product
- superset< 4.1.1-r7
Dpgaspar1 product
- flask-appbuilder< 4.5.3
PyPI1 product
- flask-appbuilder< 4.5.3
Wolfi1 product
- superset< 4.1.1-r7
4 vendors · 4 products
References
5 links- github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-p8q5-cvwx-wvwpX Refsource CONFIRMWEBAdvisoryVendor Advisory
