CVE-2026-19988

Alaev SEO Tools Extension Popup UI popup.html addDiv cross site scripting

Assigner: VulDB
Reserved: 16.08.2026 Published: 17.08.2026 Updated: 17.08.2026

A vulnerability was detected in Alaev SEO Tools Extension up to 1.0.10 on Chrome. This impacts the function addDiv of the file src/popup.html of the component Popup UI. Performing a manipulation results in basic cross site scripting. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
CVSS Score: 4.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	Low
User Interaction	Required	Availability Impact	None

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
CVSS Score: 4.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	Low
User Interaction	Required	Availability Impact	None

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR
CVSS Score: 5

Access Vector	Network	Confidentiality Impact	None
Access Complexity	Low	Integrity Impact	Partial
Authentication	None	Availability Impact	None

CVSS 2.0

Product Status

Vendor	Alaev
Product	SEO Tools Extension
Versions	Version 1.0.0 is affected Version 1.0.1 is affected Version 1.0.2 is affected Version 1.0.3 is affected Version 1.0.4 is affected Version 1.0.5 is affected Version 1.0.6 is affected Version 1.0.7 is affected Version 1.0.8 is affected Version 1.0.9 is affected Version 1.0.10 is affected

Vendor

Alaev

Product

SEO Tools Extension

Versions

Version 1.0.0 is affected
Version 1.0.1 is affected
Version 1.0.2 is affected
Version 1.0.3 is affected
Version 1.0.4 is affected
Version 1.0.5 is affected
Version 1.0.6 is affected
Version 1.0.7 is affected
Version 1.0.8 is affected
Version 1.0.9 is affected
Version 1.0.10 is affected

Credits

DRXYJ (VulDB User) reporter
VulDB CNA Team coordinator

References

Problem Types