CVE-2024-1920 [Medium] | Security Vulnerability in Lightpicture

A vulnerability, which was classified as critical, has been found in osuuu LightPicture up to 1.2.2. This issue affects the function handle of the file /app/middleware/TokenVerify.php. The manipulation leads to use of hard-coded cryptographic key . The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-254855.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-11-21	0.39%	0.19%	-0.20%
2	2025-11-18	0.19%	0.39%	+0.20%
3	2025-07-18	—	0.19%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-11-21

0.39%

0.19%

-0.20%

2025-11-18

0.19%

0.39%

+0.20%

2025-07-18

—

0.19%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.6	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L` 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: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: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:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.	2.2	3.4	[email protected]
8.1	3.1	HIGH	`CVSS:3.1/AV:N/AC:H/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:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. 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.	2.2	5.9	[email protected]
5.1	2.0	MEDIUM	`AV:N/AC:H/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:H) Exploitation requires uncommon or highly specific conditions. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	4.9	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.6

3.1

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L 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: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: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:L): Might cause slowdowns, glitches, or partial disruption—not a full brick.

2.2

3.4

[email protected]

8.1

3.1

HIGH

CVSS:3.1/AV:N/AC:H/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:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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.

2.2

5.9

[email protected]

5.1

2.0

MEDIUM

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

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:H): Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

4.9

6.4

[email protected]

Affected software / configurations for CVE-2024-1920

Vendor	Product	Version	Raw CPE
osuuu	lightpicture	>= 1.2.0, <= 1.2.2	cpe:2.3:a:osuuu:lightpicture::::::::

References for CVE-2024-1920

URL	Tags
https://note.zhaoj.in/share/gKyCbSSdJ5fY	Broken Link Third Party Advisory
https://vuldb.com/?ctiid.254855	Permissions Required
https://vuldb.com/?id.254855	Permissions Required
https://vuldb.com/?submit.287588	Third Party Advisory

URL

CVE-2024-1920 | osuuu LightPicture TokenVerify.php handle hard-coded key

Exploit prediction scoring system (EPSS) score for CVE-2024-1920

Common vulnerability scoring system (CVSS) metrics for CVE-2024-1920

Weakness enumeration for CVE-2024-1920

Affected software / configurations for CVE-2024-1920

References for CVE-2024-1920