CVE-2022-4427 [Medium] | Input Validation Bypass in Otrs

Improper Input Validation vulnerability in OTRS AG OTRS, OTRS AG ((OTRS)) Community Edition allows SQL Injection via TicketSearch Webservice This issue affects OTRS: from 7.0.1 before 7.0.40 Patch 1, from 8.0.1 before 8.0.28 Patch 1; ((OTRS)) Community Edition: from 6.0.1 through 6.0.34.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-05-28	0.41%	0.46%	+0.05%
2	2026-03-04	0.21%	0.41%	+0.20%
3	2026-01-27	—	0.21%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-05-28

0.41%

0.46%

+0.05%

2026-03-04

0.21%

0.41%

+0.20%

2026-01-27

—

0.21%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.5	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	2.8	3.6	[email protected]
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` 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:N) No account or special rights needed—anonymous or random user is enough. 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:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.5

3.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

2.8

3.6

[email protected]

9.8

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 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:N): No account or special rights needed—anonymous or random user is enough.
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:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

5.9

[email protected]

OS Trackers for CVE-2022-4427

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2022-4427 not yet assigned priority: Debian including 2 source packages (otrs2, znuny), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1.	https://security-tracker.debian.org/tracker/CVE-2022-4427
`ubuntu`	medium	CVE-2022-4427 medium priority: Ubuntu including 1 source packages (znuny), 8 status rows across 8 suites (bionic, focal, jammy, kinetic, lunar, trusty, upstream, xenial): DNE 3, ignored 3, not-affected 1, released 1.	https://ubuntu.com/security/CVE-2022-4427

Affected software / configurations for CVE-2022-4427

Vendor	Product	Version	Raw CPE
otrs	otrs	>= 6.0.1, <= 6.0.34	cpe:2.3:a:otrs:otrs:::::community:::*
otrs	otrs	>= 7.0.1, < 7.0.40	cpe:2.3:a:otrs:otrs::::::::
otrs	otrs	>= 8.0.1, < 8.0.28	cpe:2.3:a:otrs:otrs::::::::
otrs	otrs	7.0.40	cpe:2.3:a:otrs:otrs:7.0.40:-::::::
otrs	otrs	8.0.28	cpe:2.3:a:otrs:otrs:8.0.28:-::::::

References for CVE-2022-4427

URL	Tags
https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html
https://otrs.com/release-notes/otrs-security-advisory-2022-15/	Release Notes Vendor Advisory

URL

CVE-2022-4427 | SQL Injection via OTRS Search API

Exploit prediction scoring system (EPSS) score for CVE-2022-4427

Common vulnerability scoring system (CVSS) metrics for CVE-2022-4427

Weakness enumeration for CVE-2022-4427

OS Trackers for CVE-2022-4427

Affected software / configurations for CVE-2022-4427

References for CVE-2022-4427