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CVE-2018-20303

26
FAUCET Score

CVE-2018-20303 is a directory traversal vulnerability affecting Gogs versions prior to 0.11.82.1218, specifically within its file-upload functionality. This flaw allows an unauthenticated attacker to create arbitrary files on the server, potentially leading to data corruption or denial of service. With a CVSS score of 7.5 (High), it is easily exploitable over the network with low complexity and no user interaction, impacting integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.11.82.1218CPE matchmatch criteria
cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.20%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0320 is in the 76th percentile among its peer group of 51,553 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 (3)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: gogs.io/gogsFixed in: 0.11.82.1218
gopatch availablevia ghsa
Product: gogs.io/gogsFixed in: 0.11.80-0.20181218063808-ff93d9dbda5c

Vendor Advisories (1)

goGHSA-9hxg-w7qf-hh93high

Gogs Directory Traversal

May 14, 2022

References

github.com / gogs/gogs/commit/ff93d9dbda5cebe90d86e4b7dfb2c6b8642970ce
PatchThird Party Advisory
github.com / gogs/gogs/issues/5558
Issue TrackingPatchThird Party Advisory
pentesterlab.com / exercises/cve-2018-18925
ExploitThird Party Advisory