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CVE-2026-21889

28
FAUCET Score

CVE-2026-21889 affects Weblate versions prior to 5.15.2, allowing unauthenticated users to access screenshot images by guessing their filenames due to improper access control. This vulnerability carries a high severity CVSS score of 7.5, indicating it can be exploited remotely with low complexity to achieve high confidentiality impact without user interaction. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, suggesting awareness and potential interest.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.15.2CPE matchmatch criteria
cpe:2.3:a:weblate:weblate:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

2.3LOW

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 7th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: weblateFixed in: 5.15.2

Vendor Advisories (1)

pipGHSA-3g2f-4rjg-9385low

Weblate leaks information via screenshots

Jan 14, 2026

References

github.com / WeblateOrg/weblate/commit/a6eb5fd0299780eca286be8ff187dc2d10feec47
Patch
github.com / WeblateOrg/weblate/pull/17516
Issue Tracking
github.com / WeblateOrg/weblate/security/advisories/GHSA-3g2f-4rjg-9385
PatchVendor Advisory