CVE-2020-13294 [Medium] | Security Vulnerability in Gitlab

CVE-2020-13294 is rated Moderate Risk (40.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.22%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.27%	1.22%	+0.95%
2	2025-11-21	0.11%	0.27%	+0.16%
3	2025-11-18	—	0.11%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.27%

1.22%

+0.95%

2025-11-21

0.11%

0.27%

+0.16%

2025-11-18

—

0.11%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
4.2	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:N) Service keeps running; no real outage angle.	1.6	2.5	[email protected]
5.4	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:N) Service keeps running; no real outage angle.	2.8	2.5	[email protected]
5.5	2.0	MEDIUM	`AV:N/AC:L/Au:S/C:P/I:P/A:N` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:S) A single authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:N) No availability impact.	8.0	4.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

4.2

3.1

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:L): Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N): Service keeps running; no real outage angle.

1.6

2.5

[email protected]

5.4

3.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:L): Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N): Service keeps running; no real outage angle.

2.8

2.5

[email protected]

5.5

2.0

MEDIUM

AV:N/AC:L/Au:S/C:P/I:P/A:N Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:S): A single authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:N): No availability impact.

8.0

4.9

[email protected]

OS Trackers for CVE-2020-13294

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2020-13294 not yet assigned priority: Debian including 1 source packages (gitlab), 1 status rows across 1 suites (sid): resolved 1.	https://security-tracker.debian.org/tracker/CVE-2020-13294
`ubuntu`	medium	CVE-2020-13294 medium priority: Ubuntu including 1 source packages (gitlab), 11 status rows across 11 suites (bionic, focal, groovy, hirsute, impish, jammy, mantic, noble, trusty, upstream, xenial): DNE 9, ignored 1, needs-triage 1.	https://ubuntu.com/security/CVE-2020-13294

Affected software / configurations for CVE-2020-13294

Vendor	Product	Version	Raw CPE
gitlab	gitlab	>= 7.7.0, < 13.0.12	cpe:2.3:a:gitlab:gitlab::::::::
gitlab	gitlab	>= 13.1.0, < 13.1.6	cpe:2.3:a:gitlab:gitlab::::::::
gitlab	gitlab	>= 13.2.0, < 13.2.3	cpe:2.3:a:gitlab:gitlab::::::::

References for CVE-2020-13294

URL	Tags
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13294.json	Third Party Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/26147	Broken Link
https://hackerone.com/reports/469728	Permissions Required Third Party Advisory

URL

CVE-2020-13294

Exploit prediction scoring system (EPSS) score for CVE-2020-13294

Common vulnerability scoring system (CVSS) metrics for CVE-2020-13294

Weakness enumeration for CVE-2020-13294

OS Trackers for CVE-2020-13294

Affected software / configurations for CVE-2020-13294

References for CVE-2020-13294