CVE-2026-19988 (GCVE-0-2026-19988)

Vulnerability from cvelistv5 – Published: 2026-08-17 05:30 – Updated: 2026-08-17 05:30
VLAI
Title
Alaev SEO Tools Extension Popup UI popup.html addDiv cross site scripting
Summary
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.
Severity
5.3 (Medium)
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
4.3 (Medium)
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
4.3 (Medium)
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
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/391192 vdb-entrytechnical-description
https://vuldb.com/vuln/391192/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19988 third-party-advisory
https://vuldb.com/submit/873939 third-party-advisory
https://github.com/xryj920/chrome_extensions/blob… exploit
Impacted products
Vendor Product Version CPE status
Alaev SEO Tools Extension Affected: 1.0.0
Affected: 1.0.1
Affected: 1.0.2
Affected: 1.0.3
Affected: 1.0.4
Affected: 1.0.5
Affected: 1.0.6
Affected: 1.0.7
Affected: 1.0.8
Affected: 1.0.9
Affected: 1.0.10
    cpe:2.3:a:alaev:seo_tools_extension:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
DRXYJ (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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            "cpe:2.3:a:alaev:seo_tools_extension:*:*:*:*:*:*:*:*"
          ],
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          "vendor": "Alaev",
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          "tags": [
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          "time": "2026-08-16T16:58:49.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Alaev SEO Tools Extension Popup UI popup.html addDiv cross site scripting",
      "x_generator": [
        "VulDB PVTS v202608"
      ]
    }
  },
  "cveMetadata": {
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    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-19988",
    "datePublished": "2026-08-17T05:30:09.584Z",
    "dateReserved": "2026-08-16T14:53:42.927Z",
    "dateUpdated": "2026-08-17T05:30:09.584Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-08-17",
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      "percentile": "0.18266"
    },
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.