CVE-1999-1053

highpriority · attend · 70EPSS 0.852 · 100 %ileexploit · weaponizedEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

4 exploits · weaponized

Likely / severe?

85.2% (100th) EPSS

CVSS 7.5 · high

Is it mine?

3 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-23

guestbook.pl cleanses user-inserted SSI commands by removing text between "" separators, which allows remote attackers to execute arbitrary commands when guestbook.pl is run on Apache 1.3.9 and possibly other versions, since Apache allows other closing sequences besides "-->".

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:P/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-939USLLM-inferredCWE-94USLLM-inferred

exploits (4)

Public proof-of-concept and weaponised exploit code.

exploit/unix/webapp/guestbook_ssi_execMatt Wright guestbook.pl Arbitrary Command Executionweaponized · metasploit
EDB-16914The Matt Wright Guestbook.pl - Arbitrary Command Execution (Metasploit)functional · exploit_db
EDB-9907The Matt Wright Guestbook.pl 2.3.1 - Server-Side Includefunctional · exploit_db
siunam321/CVE-1999-1053-PoCCVE-1999-1053 Proof-of-Concept ExploitPoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
apache http server= 1.3.9nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
matt wright matt wright guestbook= 2.3nvdUScpe:2.3:a:matt_wright:matt_wright_guestbook:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 1999-09-13modified 2026-06-16

references (8)

External citations — patches, advisories, analysis.

http://www.securityfocus.com/archive/1/33674 enisa_euvd
http://www.securityfocus.com/archive/82/27296 enisa_euvd
http://www.securityfocus.com/archive/82/27560 enisa_euvd
http://www.securityfocus.com/bid/776 enisa_euvd
http://www.securityfocus.com/archive/1/33674Vendor Advisorynvd
http://www.securityfocus.com/archive/82/27296ExploitVendor Advisorynvd
http://www.securityfocus.com/archive/82/27560Vendor Advisorynvd
http://www.securityfocus.com/bid/776ExploitPatchVendor Advisorynvd

scry

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